A great fun way to do a pub crawl in Downtown LV and get to see some of the city besides. You can book for certain hours, or for a whole night if you can fill the whole cycle pub. They show up on time and show you a good time, and what more can you ask than that?
Note: Talked with one of the guys and he tells me that Cycle Pub is expanding, but as the tourists come into town, you'll need to make reservations. They're great about working with you for bach parties, b-days, etc, so go make it happen!