Ya, I never counted on getting a laptop with desktop performance and save money in the process.

The point entirely was that perhaps I could save some money by not going overkill with my buy according to my needs which are not that demanding compared to many other people. But on the other hand, the desktop will last longer in terms of performance and is easier to upgrade by far. And if I had a screen and a keyboard already, the desktop would be cheaper.
But in general, is it stupid to buy laptops other than for school and normal internet surfing? Should one focus on either Nvidia or ATI graphics and how many cores would you recommend on the processor?
Finally I'm curious as to why some brands charge so insanely much for their laptops? For instance the new Razer Blade which I read should ship at a cost of 2700US$ with a GT555m and a i7 cpu (I believe). Same goes for Alienware, Falcon Northwest and other manufacturers. Are you paying like 1000-2000+$ for the brand or what is going on here?