In the competition for the biggest spenders, casinos are known to pull out the stops with comped hotel rooms, meals and rebates for a percentage of their losses.
But some dealers say efforts to satisfy and retain the players go much further, with casinos tolerating abuse and extending courtesies that test the integrity of the games.
Glen Costales (koh-STAHL'-ehs) is a pit manager at Connecticut's Mohegan Sun casino. He says in recent testimony that premium players get away with more than average players including late bets at table games.
Mohegan Sun's president says the casino provides incentives to its most valuable guests but it does not tolerate anything that compromises the integrity of the games.