Most of the new Win8 machines come with a free downgrade path to Win7 I believe, should you want to go that route.
I'm happy with Win8, it's not all that different, you just need to use desktop mode rather than metro and learn a few shortcuts to supplement the lack of start menu if you are still using it in Win7. That said, I take care of my parents computer/laptop and they do fine with Win7, but I won't be encouraging them to move to 8, because its unnecessarily different. Nothing is harder or slower to do in Win8, it's just slightly different and there's not really a whole lot of reason to justify that change. It's picked up a lot of negativity from people trying to use the Metro part on a desktop and not understanding why the start menu isn't really needed, but they really should have set it up to point new users in the right direction depending on what it's been installed on (tablet vs PC).