I used to obsess over computer games, but one day coding up fun projects and being able to brag about them to my friends was the best game of all. It wasn't so cool to have a high score in a game, at the end of the day it was lame.
Now I play games to study the way they make people obsessed so I can apply it to my own projects.
I'm pretty hooked on a few ngmoco games these days, they have their game engine down to a science!