You know, I used to be on the upgrade treadmill. I've got to get a new computer in order to play games etc. I've done two things that have changed the way I look at computers. First, I bought a Mac (Why? Because it is a great laptop for a engineer/programmer/student, and generally anyone. Besides the point anyway) I kept my PC, but it quickly stopped being used. Which brings me to my second point. I stopped playing PC games. Generally I just didn't have time, and then I didn't want to. I have a couple consoles that I use on rare occasions. Very rare occasions.
Now that I don't play PC games, there's no reason for me to own a PC. My powerbook does everything and more.
Anyone can use whatever they want, and I don't care, but I won't be going back the way of MS unless there's something that will make me want to switch. That doesn't seem to be happening yet.