I've been to a few, starting when I was 18, then mainly just for bachelor parties.
If you aren't careful you can definitely find yourself over spending! I had a drunk, married friend that almost put something like a grand on his credit card because two strippers said he and his friend could fuck them in the champagne room, though thank God he backed out even though it got him kicked out of the club.
Last time we went for a friend's bachelor party, I was annoyed that night, so I actually went ahead and got a lap dance even though I typically will avoid them. I should mention I was really, really drunk of course.
I picked one of the hottest strippers I'd ever seen, all natural, gorgeous, great body, and somewhat innocent looking face. Then as soon as the dance starts, she got way more wild than I expected started doing the stuff you're told you're not supposed to do, and none of which I asked for, pushing her nipple in to my mouth, then turning around and acting like she was grinding on me in case anyone was watching, when really she had both hands reached behind her, one on my shaft, one on my balls, through my pants, and was basically giving me a hand job.
Because she literally had me by the balls, and in a state where I couldn't even stop, I ended up having to do the walk of shame to the ATM afterward, and felt extremely guilty too because I had just wanted a plain, regular lap dance to improve my mood, but felt that it went too far considering I was married.
Yet, every once in a while my mind strays back and I do end up fantasizing about the girl.