but the main question is, what about laptops? I want a laptop with this configuration – I might as well shoot myself right here – I want exactly this one and nothing else... but here's the catch – it has Vista Ultimate installed, which cost 500 bucks, and I DON'T NEED it, you see?
You need a Porsche Boxster. You go to the dealership and say: "Guys, I'd like that black one. But take off the wheels, I don't need them, I have my own. And while you're at it, remove the seats and the steering wheel." I wonder if you'll get a wild, unrestrained laugh in response, or just a look of incomprehension. ;)
Think of the OS as part of the product you're buying. If you don't like it, feel free to build your own.