I worked there when they opened the doors in 1996. The locals keep them in business because they always have good food and entertainment and it's closer (and safer) than driving down the mountain to the Palm Springs area casinos or to Temecula for Pechanga.
The road runner is a good luck symbol for the tribe, which is why it appears on their chips. If Dwain is dealing blackjack, tell him I said, 'hello'.