Most people do participate in the theme nights the on the really fun nights sometimes we have a couple wardrobe changes. I agree some nights are not as good at others such as boogie nights (used to be favorite era). not a bad idea to check out one of the clubs or do a club crawl down town one of the slower nights. we do that and come back by 2am to have some more fun at the hotel! If there is a good crowd and alot of people participate in the theme in ends up to be a very fun night!