It's a good sign to see an entire rack of tools meant to fix and restore pinball machines at a place called the Pinball Hall of Fame. The people that run this place have a clear and obvious passion for those beautiful old machines, and that demonstrated by the fact that every single damn thing there works.
Sixty year old wooden pinball machines. Twenty year old arcade games. All in working order. And cheap to play.
It's a bit of a hike from the Strip, so if you're a tourist, get yourself a car and go.