Yeah, if I installed Windows 8, I'd probably take the time the time to learn how the new things work. Just because something is new, doesn't mean it's bad.
What I don't like is how consumption-oriented Metro is. It doesn't matter how slick it is, I don't want to be bombarded with notifications when I sit down at my pc. But of course, I can avoid it entirely, which I probably will. Windows 7 should do me for the next five years, easy.