Over here in Australia, it seems to be pretty much just run by the Vietnamese or "Honkies" (Honk Kong-Chinese), or yeh Thai/Cambodian.
Yeh, sure you see your occasional Italian, Greek or Arab running smack, but it is not very common. Even on the street level, everyone knows the place to go if you can't score any Heroin is Chinatown.
I have seen a couple of white people selling on the streets and I will never, EVER buy from them. Don't mean to generalise, but I have never got a good deal from a white person. I don't know why that is, maybe they just haven't been in the game for long enough, or they take no pride in what they do.
All of the little street urchants that run smack are junkies. They merely do this street level of dealing, not for the bucks, but to support a ridiculous habit, that a normal job can't provide the money for. My dealer (who sometimes hits the streets early hours of the morning, but very seldom does) mainly runs his deals from his car and phone... and if he didn't have a habit the size of the moon, he would be wraking in over $1000.00 a day. Just for himself.
Crazy, all this dicey work, just to feel good for a couple of hours and after that, bam! At it all over again, to feel good again.
It's amazing, the Asian dealers just congregate there on the sidewalk in front of the amusement game parlours, looking for their next customer, or gloating about how many baloons they have sold that day. I seriously don't know how they do it, really.
Of course, all of this is at the street level of dealing.
Then, of course, there is higher up, where the little street urchants by their gear from. Usually they buy their gear in quantities of 1.7's (1 gram and 7 points) and they can make up to 36 individual baloons, or hits out of that, that sell for $50.00 AUD. So, yea... if business is booming on the street, quite clearly there's a shitload of money to be made.
Back to the people that are higher up. They usually only buy their smack in "minicakes" or ounces. and sell this off in incriments of 1.7's or 3.5's.
At a time like this time of the year ie: Christmas, or heading into the new year-festive season, alot of the higher up guys will sit on their gear and either not sell it for a while, or sell it only in individual grams or 1.7's... no higher, so the price will go up. Because the demand for smack is so damn great at this time of the year.
No street dealers carry guns or anything. It's always unheard of, unless of course... you're in Cabramatta, but even still, it's a rare sight there apparantly these days. (Thank God for the strict gun laws in Australia, fuck I hate America!)
The worst that will happen, is someone might chop at someone else that has ripped them off, with a machete` or hatchet, or what have you... but again, pretty rare.
Someone said about dealing drugs as being a loser's game before. And I must say, I would have to agree with that. Sooner or later, the cops will catch on, unless you keep your deals exclusive. But, it never turns out that way, not with Heroin.
A junky will get caught with 2-3 baloons and the cops will bribe the junky with more smack, or money in order for the junky to point out who the dealer is, and then chase up after the dealer and hit them up with a weaker ultimatum in order for the dealer to cough up and tell them who their dealer is... and it just goes up the chain, like so.
Some get out of the game just in time, but most are lured by the easy money and get caught in the end. That's just the way it is, and once you've acquired a criminal record here, the cops will be on you like flies on dogshit everytime they see you.