If you copy and paste that into your browser, you can find a fascinating article about Vegas topless clubs paying taxis even more for delivering customers. $80 per person in some cases.
Also, the article claims Cheetah's and the Crazy Horse Too are for sale -- at about a 50% discount compared to just 2 years ago.
If you get one of those cupons in the magazines on the street to get in free.... it takes away from the cabbie's take