At work, I have an Apple PowerBook. (Windows box = someone else is Admin. Mac = installing my own software.) It is three years old and uses a processor that is now incompatible with most Mac applications. That is the main reason I finally got around to getting a new one.
It came on... Monday? And I just opened the box today. Because I really just don't care as long as I can get my work done on it, and I haven't been dealing with anything that the old processor can't handle.