I just got into them a couple months ago...now that we have a little more space (new house). I'll probably go crazy after the basement's finished, but I have 3 for now: Playboy (2002), South Park, and Indianapolis 500. Even through up a blog to document my new habit.
http://www.pinballblog.com/
Post em if you got em! Lensman, come on, you gotta have a Playboy machine, right?