I dont know where the fuck you live, but everybody smokes weed. A college is the best place to sell it as well as prices are always jacked. And actually brownies are pretty much a high school/college thing anyway. No real drug dealers (residing in the ghettos you speak of) would sell them as you could be selling bullshit brownies and that shit is not gangster anyway, hell most of the more "ghetto" people I know dont even smoke bongs ever, just blunts, much would consider less selling brownies. You ever hear a rap song about eating brownies in the club? lol