The same people who will comparison-shop the butter and eggs at Ralph's don't care about the price of gambling (the house percentage). If they did, almost nobody would play slots; nearly everyone would play blackjack and craps; and craps players would take full odds.

Show me a bank of slot machines that is marked "99%" and I'll show you a bank of slots that is empty, or that has fewer players than the unmarked 86% bank nearby.

The real loss figure is the "hold percentage" which is the ratio of the amount of cash-outs to the amount of buy-ins. This is a much higher figure, about 10% for a craps table.