Once buzzing with the sound of bingo calls and coins dropping in slots,...

https://www.tentonhammer.com/articles/bingo-halls-slot-machines-and-the-quiet-half-of-the-casino

Once buzzing with the sound of bingo calls and coins dropping in slots, traditional halls have faced big changes. The 1960 Betting and Gaming Act opened doors, but the 2007 smoking ban quieted many rooms