Traditionally the notebooks with the largest screens are the least attractive, have the worst battery life and are heavy. They're also usually cheaper than their smaller brethren to give people a reason to buy them.
Take a look at what Dell and HP offer with a 17-inch screensize:
| 17.3-inch Notebooks | Dell Studio 17 | HP Pavillion dv7t Quad Edition |
| CPU | Intel Core i7 720QM (1.6GHz, up to 2.8GHz Turbo) | Intel Core i7 720QM (1.6GHz, up to 2.8GHz Turbo) |
| Memory | 4GB DDR3-1066 | 4GB DDR3-1066 |
| HDD | 250GB 7200RPM | 320GB 7200RPM |
| Video | ATI Mobility Radeon HD 4650 1GB | NVIDIA GeForce GT 230M 1GB |
| Optical Drive | 8X Slot Load DL DVD +/-R | 8X Slot Load DL DVD +/-R |
| Screen Resolution | 1600 x 900 | 1600 x 900 |
| Battery | 9-cell 85Whr | 8-cell ??WHr |
| Dimensions (W x D x H) | 16.28" x 11.04" x 1.1" - 1.54" | 16.2" x 10.9" x 1.37" - 1.70" |
| Weight | 7.08 lbs (6-cell battery) | 7.74 lbs |
| Price | $1099 | $1069.99 |
In both cases you're looking at over 1" thick at the thinnest point, and in the case of the HP system it goes up to 1.7" thick. Both machines start at 7 lbs and don't offer higher than 1080p resolutions. In fact, all the larger screen is useful for is reducing DPI as you can get the same resolution screen in 15-inch and 16" models. The hardware is usually fast and affordable, both machines cost less than $1000.
The 17-inch MacBook Pro is a bit different.

At 0.98" thick, it's only 0.03" thicker than the 13-inch or 15-inch MacBook Pro. And that's a constant thickness from front to back. The impact on how it feels is tremendous. It's the first 17-inch notebook I've used that doesn't make me want to laugh at first sight. It honestly just looks and feels like a slightly bigger 15-inch machine.
| 17.3-inch Notebooks | Apple 17-inch MacBook Pro | HP Pavillion dv7t Quad Edition |
| CPU | Intel Core 2 Duo 2.8GHz | Intel Core i7 720QM (1.6GHz, up to 2.8GHz Turbo) |
| Memory | 4GB DDR3-1066 | 4GB DDR3-1066 |
| HDD | 500GB 5400RPM | 320GB 7200RPM |
| Video | NVIDIA GeForce 9400M (integrated) + NVIDIA GeForce 9600M 512MB (discrete) | NVIDIA GeForce GT 230M 1GB |
| Optical Drive | 8X Slot Load DL DVD +/-R | 8X Slot Load DL DVD +/-R |
| Screen Resolution | 1920 x 1200 | 1600 x 900 |
| Battery | 95Whr | 8-cell ??WHr |
| Dimensions (W x D x H) | 15.47" x 10.51" x 0.98" | 16.2" x 10.9" x 1.37" - 1.70" |
| Weight | 6.6 lbs | 7.74 lbs |
| Price | $2499 | $1069.99 |
It’s also Apple’s most expensive notebook. Starting at $2499, it’s more expensive than the 27” iMac and doesn’t even come with a quad-core processor. You’re paying for the screen size, as you can get the same hardware in the 15” MacBook Pro.
The added size is used for one purpose: a higher screen resolution. Apple offers a single display option with the 17-inch machine: a native 1920 x 1200 panel. It's a 16:10 aspect ratio panel, measuring 17-inch on the diagonal, resulting in a pixel density of 133.2 pixels per inch (PPI).
| 17.3-inch Notebooks | Pixels per Inch |
| Apple 13-inch MacBook Pro | 113.5 |
| Apple 15-inch MacBook Pro | 101.6 |
| Apple 17-inch MacBook Pro | 133.2 |
| Apple 27-inch iMac | 108.8 |
| Apple 30-inch Cinema Display | 101.6 |
| 15-inch 1080p Panel | 141.2 |
That’s more than a 30” display. That's more than the 27" iMac. That's more than any other 17-inch notebook on the market today. Only the 15-inch 1080p panels offer a higher pixel density at 141.2 PPI. It's sharp.
Apple makes the 17-inch MacBook Pro very work-focused, you get a ton of desktop space in a package that's honestly not bulky. I can't stress how pleasant it is to carry around; at a constant thickness of less than 1" it really feels a lot smaller than it is. It's the only 17-inch notebook I'd be willing to take with me.

From left to right: 13-inch, 15-inch, 17-inch MacBook Pro. Note the constant height.
The 17-inch MacBook Pro was the first to use Apple's integrated batteries out of necessity. Apple wanted to build a slim, attractive 17-inch MacBook Pro, and cutting down on battery volume enabled that. A side effect was that the 17-inch model has impressive battery life.
Paired with a 95Whr battery, Apple promised up to 8 hours of battery life - a realistically attainable figure as you'll soon see.
From a hardware perspective the 17” isn’t that much different from the rest of the lineup. The system starts with a NVIDIA GeForce 9400M chipset, adds a separate GeForce 9600M for GPU intensive workloads (3D games, OpenCL apps, etc...) and gives you the option of either a 2.8GHz or 3.06GHz 45nm Core 2 Duo with a 6MB L2 cache. The vast majority of users will find the 9400M is sufficient for their needs. And paired with Snow Leopard, the 9600M in the off state doesn’t sap as much battery power as it did under Leopard.
The machine starts with 4GB of memory, expandable up to 8, and comes with a 500GB 5400RPM SATA drive. SSDs are still only optional from Apple.
The 17” system doesn’t come with an integrated SD card reader but it is the only MacBook Pro to ship with an ExpressCard/34 slot.

From left to right: Power input, Ethernet, FireWire 800, 3 USB, Mini DisplayPort, Line In, Headphone Out, ExpressCard/34
Mini DisplayPort is the only way to connect to an external display, and unfortunately Apple cheeps out and doesn't supply any adapters with the machine. With a 17-inch 1920 x 1200 panel, you'll probably be fine without one though.
About the only thing that the machine is missing is Nehalem, but that won't come until next year.

From left to right: 13-inch, 15-inch and 17-inch MacBook Pro
The 17” MacBook Pro started a new trend within Apple. Integrate the battery, offer longer battery life and no one will complain. The technology soon waterfalled down to the 15” and 13” models.
My buddy built a custom laptop for $1500 that DOMINATES any MacPro, with a better to equal screen res, oh plus the caveat of a MATTE screen, thus it's a better screen actually. It's faster, better GFX, BUILT better, completely custom, looks nice and WORKS.
There's no comparison when the elitism and snobbery of blindly knowing you got ripped off for a fluffed up Intel machine in satin and lace gloves. I have a MacPro, and other PC laptops... Guess what machine gets WORK done in the corp environment more so than the Mac needing to run silly emulations of Windows in order to get things done. But why so? If these overpriced luxo-pads really ARE "superior" then ask yourself why again hasn't Mac broken into the working world of business and corps if they are user-friendly and problem free?
You'd think a smart corp would take note and thus spend a little extra capital for these machines, as it’s part of my job to support them... Guess what, Mac's aren't going to be adopted nor switched over b/c they are mere flash and dash for the foo-foo to keep fluffing their yaps about how great it is to get SUB-PAR performance at premium prices... Oh and don’t forget Apples RIDICULOUS (strike) LAUGHABLE service requirements…
Applecare Technician cert required to work on these toys? HAHA Anyone with ½ an A+ cert can take this BS machine apart just like a PC and then some. But with Apple at the helm, you’ve gotta agree to their pricing schemes and wanna-be island in the sky certs to do work that a teenage can do. Again more hidden costs and fees associated with the wanna-be Elite crowd. Do you know why they have to charge these exuberant fees out of sight? To long bait you into their way of things, to where there’s no point of turning back once committed. The fees also help keep them afloat; remember for it not for Creative’s ideas they stole, Intels hardware, and the stupidity or nativity of it’s fan(boy) user base… “Apple” would be rancid and a DECAYING company haha… and you all know it… Botching performance specs can only keep you “competitive” for so long, until your own flock began noticing how ailing those junk G-series were haha… What a joke.
Sorta like a hopping up Civic with "euro" lights and smooth lines and then getting dogged by an American competitor that's near 30% less = interior and those "build quality" upgrades that everyone's hollering about added to surpass you.
You can get a Porsche 911 C4S for near $90K... Vs a Base vette C6 (which is still faster lol) for $60K and CUSTOMIZE it way beyond what Porsche could dream of at such a price; yes that’s BETTER; performance in every category, interior upgrades also... Apple is all fluff when it comes down to it. IT's NOT a hardware brand, it's borrowed technology from INTEL; it's master, then some BS ideology slapped onto it to appease the easily swayed/coerced. Sorry but I'm sick of the people who pay MORE for > less and have the nerve to claim superiority.
But like OMG, it’s sOOOOOO PRETTY – YAAAAAYYyyyy! That subject to OPINION and thus a forever MOOT POINT.
Who knows... Apple has been found GUILTY more than once for stealing other's innovations and pawning/spinning them off as their own. Google that FYI...
Hype and flash; smoke and mirrors... Case dismissed.