It's a predicament. Your 'good guests' are boring but they pay more than the 'bad guests'. But the good guest won't come to Vegas is boring. They also won't come to Vegas if there are too many black people. Vegas is full of racists. Last year, the Cosmopolitan of Las Vegas preemptively banned Meek Mills from the property and threatened him with arrest (article here). Meek Mills lawyers claimed racial profiling because Mr. Mills has never stepped foot on a Blackstone Property (and probably never will again).
From Meek's experience (on video), we can see that Las Vegas' security guards are inherently racists.