And the retro arcades are really bars for their business model. The profit is all in the $9 beers and $16 nachos, not the admission charge or coin drops. The games are just the crowd draw like live music or trivia or whatever.
Redemption games get families loading up $50 per kid at the card machine (and then $50 more after the kids blow it in twenty minutes); retrocades aren't pulling that from anybody.