We don't drink or gamble and we don't like Vegas. We used to go several times per year. We lived in SoCal and DH's family would come from the mid-west every winter, so we would meet them there. And DH and I would typically have conventions there for our jobs (those we went alone.)
Once you have seen the hotel themes, been to a couple of shows, etc.....it just isn't very exciting. And when we took young kids, they couldn't go into much.
But obviously most people don't share my opinions......