ENTS, I'm heading out to Las Vegas for my birthday, any tips on how to score some herb in a new town?

I'm heading out to Las Vegas tomorrow (22nd) and will be at a hotel on Las Vegas Blvd until the end of the week. I've never been very good at scoring while in a new town and I don't know anyone out there. I know I can ask the sketchballs handing out hooker flyers but I really don't want any dirty bricked mexican pineapples. If anyone has any advice I'd really appreciate it. Definitely trying to get my pineapples before I see Blue Man Group!

EDIT:http://www.youtube.com/watch?v=FtX8nswnUKU