I’ve been to Las Vegas twice in December and it is, in its own inimitable way, something to see.
First, there are the cowboys. For 11 days in December, Vegas is taken over by the National Finals Rodeo. It’s fun, especially if you enjoy country music while you play slots.
Incongruently, because Vegas doesn’t care about congruence, there’s the totally secular, over-the-top holiday thing going on. You’re going to want to get your spiritual fulfillment elsewhere, holiday-wise, but it can be fun, too, if you don’t take it seriously.