I'll speak for myself and say that I never indulged while I was in Denver last year (at all), and had plenty of opportunity.

For one, waaayyy too much drinking going on and it's a horrible idea to combine the two, especially when that much alcohol is being consumed....but I speak for myself.

I could smell it several times, even when going to classes. I'm not sure how people can justify spending good money going to Denver, and going to class (where you're supposed to be learning) stoned (or drunk)...but I guess I live by a different set of standards. Seems to me like a waste of a good high and a waste of good dollars on a class.