This was the best $10 I've ever spent.
The variety of pinball machines is impressive. There's machines from every decade. The short list of some of the machines they had-Captain Fantastic, The Simpsons, Sopranos, The full list of machines is available here
BUT there's more than just pinball machines here. A nice surprise was the old-school video games, skee ball, and air hockey machines which are all included.
This was definitely a good use of a few hours.