and it makes sense. If you buy a new computer the last thing you want is to be forced to use an operating system that is unfamiliar, or that you don't like.
Personally I'll be sticking with Windows 7 - I've been running the beta for a while now, and I'm very impressed. It's rock steady and very easy to use....and that's a beta version. I can quite understand those who would rather stick with something else, however.