Since nobody liked my fabulous joke, I will tell you the truth about Las Vegas. I was there, once, about 10 years ago, for a non-frum friend’s child’s wedding (which ended in divorce, if that means anything).
There is nothing to do but gamble or see non-tznius entertainment – dirty comedians and women in skimpy costumes. My spouse and I went out for a walk one morning, and there were baseball-card sized flyers all over the sidewalk, advertising and picturing prostitutes. My spouse said of the cards: “This is some town. They have trading cards for prostitutes.” So why any frum Jew would go to Las Vegas (other than for a wedding of a non-frum friend) is beyond me.