Las Vegas needs no description. It is the gambling mecca of the world. In addition to the gamblin, there are many clubs, restaurants and shows that can be visited. Best known to climbers in the US is just outside of the city limits. The place is called Red Rocks.
Favourite spots:
Red Rocks Park MGM Luxor Treasure Island Mandalay Bay
What's really great:
I really enjoy that you can climb all day and go to the city at night to have a good time. Either you can camp for a reasonable cost or possibly get a hotel room for cheap.