I went to Vegas last year, and although I don't really gamble, it was awesome! Sightseeing, drinking, food, shows, etc. The whole town had a magical quality (for lack of a better term) and everyone was so friendly & polite. As in, no one bumped into you in the street (though it was super crowded), people volunteered to take each other pictures, etc.
Have you ever been on a vacation that just seemed magical and exciting? Where did you go?