It's huge. You just need to look at the physiques now. In the 80's, it was still mainly just middle or high level strength/bodybuilding hobbyist, with a few anomalies here and there. Now lots of models, casual gym rats, etc.... are on something or looking to be on something. Also the hook ups are easier now, sure you could go to Dr. X and get a script in the 80's. But now, all you have to do is fire up your internet connection, I've seen literally 100's go from messing around with one of the stronger pro-hormones to searching out source boards in a matter of months. Also, the info, both good, and bad is more out there freely. No more spending time trying to get in good with a lifting crew or waiting weeks for your copy of the "Underground Steroid Handbook" to show up, now in three or 4 clicks you're on a steroid board.
Also the whole life extension/HRT end is still huge for all types of things. It's just more genteel than the body building end. There is still a bit of a stigma about hardcore bodybuilding/strength sports with them, but they are still looking for the latest steroid, nootropic, fat reducer, etc.... info or products as everyone else.