I dunno, I guess I stopped feeling 50 after I found out that he's never smoked weed before. I mean its cool if you don't but why make a bunch of songs about being high all the time if you've never smoked, thats just fake as hell. So I guess I stopped really listening to him then.

from a article :

Yet Fifty's rough image got him here. His two albums have sold over 20 million discs worldwide in spite of their graphic realism--or more likely because of it. And the threatening facade, these days, is more marketing than reality. In person, despite his imposing 6-foot frame and bulging biceps from daily workouts, he is polite, soft-spoken, thoughtful. He insists he lives a quiet life, rarely goes out partying, won't use narcotics or smoke pot (despite his ode to weed, "High All the Time") and eschews alcohol. Onstage, he guzzles from a Hennessy bottle. His fans don't know it holds only iced tea......
see:Newsvine - Capitalist Rap - 50 Cent - How to Get Rich on Rap - Forbes