If you're into music or play guitar--you might want to check out these two two things:
www.edroman.com
Very outspoken and opinionated guy. Funny and kind of an asshole. Has a huge selection of guitars you won't often in one place.(He's kind of near the tropicana)
The Hard Rock Cafe in Vegas is pretty fucking good. The original Jimmy hendrix wardrobe will make you realize we live in very dull times these days.
Lake Mead is also very cool. Very beautiful. Stay an extra day and do some jet-skiing if you've never done that before.