Most of the people I know just think macs in general fucking suck. So I don't see why they would destroy every other company if they priced competitively.
I'm still using vista though. Might upgrade to windows 7 next year. Cant right now since I have solidworks on my laptop for my project and my teacher wont install it again because he is a dick, so don't want to take the chance in case it wont work properly without reinstalling.