I think that the one thing everyone has to realize is that Macs ARE overpriced... I think the best comparison is to Sony Vaios, which are also expensive, with quality build materials and a focus on style.
I just bought a Macbook Pro 13'' 2.53. Being a grad student, I was able to get it for 1399 and getting the free iPod touch (which I've been trying to sell) takes the price down to approximately 1199...
My fiancee got a Vaio FW, 2.53 ghz, 4gb RAM, 320 gb HDD, 16.4 inch screen, 512 MB Mobility Radeon 4650---in other words, all specs the same or better (on the graphics card, substantially better). Granted, her computer weighs 6.5 pounds or so and mine weighs 4.5. I wanted portability.
However, suppose I had looked to Sony (which, again, is considered to be an overpriced PC brand) for something in the same weight class. The SR model weighs 4.1 pounds (less than my macbook pro), and I can give it a 320 gb harddrive, 4 gb RAM, 2.53ghz, Radeon 4750... for 1379. So, technically this is cheaper than the MacBook Pro I got and is SUBSTANTIALLY better (graphics would trounce the abysmal 9400M, and the harddrive is quite a bit larger)... the macbook literally has nothing over it besides multitouch and being a bit thinner? I went for the Macbook Pro mostly because the free iPod Touch brings the price down another 200 bucks or so (assuming I can ever sell the damned thing) and because I wanted to go with OS X after years with Windows.
Also, people seriously need to get over Windows being crappy---it's NOT. It's rock stable, it's secure, it's fast, and it has every bit of productivity that any other OS offers. I personally like some of the things OS X does more than the way Windows does it and also some of the ways Winodws does things over OS X. Nonetheless, there is no way to justify paying a huge excess in price for just OS X.
I think that a big part of this is Apples model scheme: Macbook Pro is more expensive than the Macbook and the models have to scale appropriately within the Pro class: of course the 15 inch is more expensive than the 13 inch, right? But the problem is that Apple charges ridiculous premiums. Unfortunately Apple doesn't seem to NEED to change its pricing. The 13 inch MBP is selling like crazy---I needed a replacement and when I first went in, EVERY STORE IN THE COUNTY was sold out.
I'm relatively happy with my purchase, and it's a beautiful computer. Nonetheless, I really wish Apple would consider offering more competitive price points.