Took me a decade to "upgrade" from XP to 7... I like letting OS's settle for a while before installing them. I like 7 when you take control of it (change the admin settings so the annoying "admin priveleges" pop up does not happen etc. Basically, I run 7 like XP

. My wife has Vista on one of her 2 laptops, and it's an absolute NIGHTMARE. AT least 7 seems like a combination of the good of XP with the good of Vista (not much!).
I won't go to 8 for at least 3 years, if then. Let it settle, let it have SP's, and then MAYBE. Tried it on a friends computer, and it REMINDED me of Mac... which means I had an instant aversion to it. Big W@NK factor to Win 8.