Vegas May 4-6?

[jjp]

Going with the wife to Vegas on May 4-6 (which means I am limited to playing poker from midnight to 4 AM) [img]/images/graemlins/mad.gif[/img]
Anyhow, room rates are outrageous that weekend, higher than the surrounding weekends (I have a room at the former Barbary Coast for $190/nt). Is there a reason for these higher rates? I didn't see a big convention on the convention web site though. Boxing match? MMA?
Any other hotel tips? Poker room rate is out because my wife doesn't want me playing that much since she doesn't gamble and doesn't want to be left alone all the time. [img]/images/graemlins/frown.gif[/img]