[grogen]

I have tended to feel the same way but arguments can be made that allowing unrestricted doping would force those who want to compete to take something potentially/increasingly dangerous to their long term health in order to do so at the top tiers (as if you didn't, there would certainly be someone who would be willing to burn the candle at both ends for the fame and money).

Even in the case where you were to break things out into a doping/vs. non-doping leagues, I have a feeling that in the ultra-competitive world of top athletes, there would be a temptation to get an edge in the non-doping league by similar means as are used today thus buying nothing (except, perhaps, an additional league of super-human athletes who I suspect would get more recognition, fame, and money than their counterparts and therefore push more athletes into a doping arms-race).