Revenge from Mars. Used to go to BW3 (back before they changed their name) and plug a few bucks in while waiting for my food. I used to watch my dad play pinball when I was growing up, but it never drew me in. But the story modes in RFM sucked me in.
Then I got hooked on Pinball FX2 tables on the Xbox. I actually write reviews of a lot of them on neowin.net. It's a little different than a physical machine but still fun in its own right.
I bought my first pin a couple of weeks ago: T2! I have a LOT to learn!