"... big promotions like Zuffa or Dream Stage Entertainment ... could easily afford to pay for every fighter to be drug tested on every card with the revenue generated from less than 100 tickets sold."
--Ivan Trembow from MMAWeekly.com reporting on the random sample of fighters tested for banned substances at UFC 68, which included Randy Couture, Tim Sylvia, Jon Fitch and Luigi Fioravanti, coming back clean.
Sounds like there's no reason to not test each fighter -- silly.