Hookers, lots and lots of hookers. 
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LOL, while there are many; remember, prostitution is illegal in Clark County (thus Las Vegas). Legal brothels are all out of the county. Closest being in Pahrump I believe. And, for someone saying blow,

, well, it is illegal everywhere.

There is so much to do here off the strip you would be surprised. If you like skiing/snowboarding, etc, Mt. Charleston's about an hour out of town with decent facilities. There are places to go dirt bilking/ATVing/dune buggies over near the base and at the other end of the valley too I believe. Ice/roller skating, horseback trail rides, museums all over town, NASCAR racing experiences, indoor go kart racing, etc... etc... not even listing things at Lake Mead; though chilly this time of year, still, boating dinners and tours are pretty nice. Too much stuff to list, so pick out what you like doing and do a quick internet search and you will find where to get it done here. Don't gamble more than you budget for, the casino's don't make so much money because they are easy to beat

Have fun, be safe!