Hmmm, spanker, great post.
However, it doesn't explain why some former users claim that after stopping they regained their sexual drive.
I know that without a doubt, Propecia did it to me. Completely different class of drug, I know, but I am saying this to emphasize that I noticed the difference.
I also notice the different in the last 6 months. It might be unrelated - I did just turn 30.
But, having stopped for about a week, I already felt different... the same girl got it up when she didn't before.
I am not saying this is anything but a fluke, or even psychosomatic... I will give it a long run haul and see what happens.
I am afraid of this, however.. I know that a month might mean 6 months of lost work as far as hair goes, perhaps irreversibly.