Quoted from nascarrey:I know its an auction site, but figured i'd share since there are so many pins..
https://www.liveauctioneers.com/search/?keyword=pinball&sort=-relevance&status=online
Just FYI, Jaybird Auctions sells for Coinop Warehouse. Pinball is not their primary business and you should carefully inspect any of their machines - they are sold "as-is". Good deals can certainly be found, but be sure to check them out closely. They also add an 18% buyer's premium.