Serious question, what do you get out of using?
Serious answer: I'm bigger and leaner than most people. I'm usually the biggest in the room, and I like it. I get professional respect that I may not get otherwise, although this wasn't true when I was younger and even bigger (competing).
Also, I fuck like a champ. I'd fuck your girl while she was at work, and she'd think of me next time you lamely pumped her. True story.
Lastly, I don't drink often, never used rec drugs. Weights are my thing. I didn't want to be one of the pathetic people who you see at the gym every day, year after year looking the same. So I did something about it.
Personally, I think it's great that people train naturally. I have nothing against those who don't see the need to juice. In fact, I always recommend against if possible because most people won't take the precautions necessary to do it and stay healthy.
What does bother me is those who bash people like me who don't bother people like you.