Its not just a show...its a life changing experience. You walk out feeling positively alive! Well, that and its great getting together with a bunch of random screaming women and treating the dancers like meat. Liberating? Sure...uh ok, I'll use that as my story. I did it for the feminist inside of me.
I agree its a little cheesy with the themed outfits and songs that they lip-sync to, but its a small price to pay for some good old fashion non-PC entertainment. I think the 1/3rd of a tux also brings some class and respect. :P