I went all four days and had a good time. I arrived about noon on Thursday and had plenty of time to try the newer machines like Mustang, Metallica and AC/DC. I figured that things would be more busy the rest of the weekend, so I started early. I must have been there at 8:30 AM the other three days getting plenty of time on all the DMD games. The last two days, I really made an effort to play the older solid state games, and I have to say that a lot of them were fun in their own way. My favorite was probably OXO. It seemed like it had a decent amount of strategy for an early game. I am definitely coming back next year.