The California pinball auctioneer has been calling a lot of fairly common games “rare.” But rare doesn’t mean valuable, and to collectors, rare has been a tricky word to define.
For example, I own a Mystic Marvel game. There are 8 Pinsiders who list the game in their collections, and two public places where you can play this game. I know of two other Mystic Marvel games in collections not accounted for on Pinside. There were 1,050 games manufactured back in 1954.
By my math, that means roughly 1% of these games can be accounted for, and that doesn’t take into consideration their condition. That kind of scarcity makes this game seem pretty rare to me.
I know some games are even harder to come by, but that seems to be the best example in my possession.
How do you evaluate scarcity, and is there a good rule of thumb for gauging the number of a title likely to be still in existence?