I don't change things unless I absolutely have to. I don't believe that any new platform (Windows 7, Vista blah blah blah) is worth the trouble of changing years of habit.

Every few years something goes wrong, and I take it to the neighborhood shop, where the guys put in some new parts. I won't change from my XP until forced.

My computer is like George Washington's hammer - it's had four handles and three different heads, but it's still his hammer.