I've only been to Vegas once, and enjoyed it. Here are my two biggest tips: - If you feel just like drinking, sit at one of the bars with video poker, and just place small bets occasionally. They'll keep giving you free drinks as long as you're sitting there and apparently spending money, even if it's just a few quarters. - People are constantly going to be harassing you with offers of free tickets or whatever, in exchange for going to a presentation, or some other such waste of time. Don't be afraid to be rude and keep walking. I didn't bother with any of them, but such people tend to wear on my patience pretty quickly.