I agree, you'll get lots of negative responses about this. I'll give you a positive one.
We took the kids our last trip. They were 7 and 10 at the time. We went early, stopped at 8 Traxx where DD danced (just me and her on the dance floor, the place was dead) and love it. The girl loves to dance. I don't see how it's inapproriate at all.
We went to the Adventurer's Club which we all loved!! Some of the jokes were of the double entendre kind---which went right over my kids' heads. It depends on your tolerance for this kind of thing, but it's nothing worse than your average 8pm sitcom (well, even tamer than that, I would say).
We then went to the first showing of the comedy show. Yes, there were other kids there, and yes, they were picked out by the cast members in a joking way. One got picked for skit, and the most "suggestive" thing I heard all night came out of HIS mouth.
Yes, there are adults drinking and smoking. Just sounds like the average family wedding to me. As for suggestive clothing--yeah, there was one crazy lady there (an older woman, too), and I just distracted my daughter when she was near. Nothing I'd get my panties in a bunch over, though.
When it got around 10, the crowd really started to change and we headed out. But I don't regret going for a second.