Pinball is the best game. I used to play the Lord of the Rings machine when I was a kid. You had to collect the Fellowship to get multiball, although there were also a couple other ways you could trigger multiball (with a smaller number of balls though). I always considered controlling multiball as long as possible to be the "goal" of pinball, and of course getting as many free games from two quarters as possible.

Recently I learned (through hn I think) that there's an arcade in Chicago that offers a relatively cheap play-all-day pinball arcade room, I'm thinking of trying to go down there some day.

Unfortunately I also remember that I got a lot of wrist pain from playing, and I'm a bit concerned about re-triggering that; it would be catastrophic if my typing were impacted, so unless I had some prolonged time off work I don't think I'd ever play for more than maybe an hour at a time, spread out over several months.