As with most drugs, it has a lot to do with what part of the country you live in.
I live in the typical white-boy college middle class town...Yet the town I live in borders:
A)The Ghetto...no, THE Ghetto...It's bad...real bad.
B)Uppity upper class...think: Yuppies.
I've managed to find smack in both places...Yes the yuppies charge more, but they're also a hell of a lot less scary.
Granted, I had to rely on the hood for my dope for a while, but as with most drugs, if you keep looking, you'll find it...and eventually you'll find a somewhat-reputable source to purchase from.
*Sidenote* I've noticed, too, that the yuppies always seem to have dope that is cut to hell and back...whereas the ghetto boyz seem to have more pure dope....
*One final side note* Though the yuppies make me feel safer...they are NEVER ON TIME, nor is it a speedy process. You have to sit down, talk, re-assure them that you are a white kid from the suburbs and listen to them whine about everything and nothing.
The boyz are always fast. You get your shit, you go home, and you do it. Period. A lot less BS to put up with...I guess it's just a giant catch 22...you have to decide which poison you wanna drink.*