Hope it's not like the show in SF a few years back: he showed up at about 12:30 am (I think 9 pm show) and spent his time unfunnily mocking the audience.  People leaving during the show, he would say really nasty things about them without a trace of humor. Too bad, his comedy specials are some of the funniest I've ver seen. Hope you ticket buyers get the latter Dave Chappelle.