Wow... tough question. One has to consider though that being caught is only one of the negatives. Taking that out leaves the myriad health risks that go along with PED's.. I like to believe that the reason there are the anti PED rules is to save people from themselves, as opposed to ensuring a level playing field.
I can't balance coercing someone to give up their health for my entertainment value, whether they choose to do so or not.
In regards to whether I'd do it though, I would think that MOST high level performance athletes would do it if they knew they would not get caught; their mentality seems to be geared to winning, not long term health, so the answer is yes, if I was a high level athlete, I probably would, but with the understanding that the culture I would be immersed in would probably take most of the rational, balanced thinking away.
Cory