Windows XP already tripped my "you gotta be kidding" circuit breakers with "activation", so I haven't upgraded from Windows 2000. The consequences?
1. The Bluetooth dongle I won as a website "door prize" doesn't work.
2. I had to reinstall when I upgraded to a dual-core processor, so I did my periodic reinstall-windows-to-clean-out-the-crud long weekend six months earlier than I was planning on.
3. I don't get the Fisher Price Desktop look.