Six days? That's a long time in Vegas. Bring chapstick and drink a lot of water, because it is extremely dry.

Eat at Lotus of Siam at least once while you're there. It's off the strip, so you'll probably have to take a cab (unless you're driving) but it's probably the best Thai food in the country. The cripsy duck and braised pork short rib off the chef special section in the back are must-haves.

Also eat at one of the buffets in one of the bigger hotels while you're there. It'll cost $40 or $50 but you'll never want to eat food again after that.