Anyone who's been there more than once knows why the girls are there - to get money, and if they're real lucky, as they see it, a rich husband.
If it wasn't for the money thing, 98% of the girls (and gays, and ladyboys) would probably be dancing with people their own age, listening to local music.
Methinks that if the music being played was driving away customers, the music would change immediately. Or, if the music seemed to attract more people, it wouldn't change. Isn't that the bottom line - to attract more customers, and have more sales?