They can make a lot - but they also get killed a lot.
And arrested a lot. And spend a very long time in jail.
And they have to live with the fact that what they do destroys people's lives in dozens of way.
They should make a lot, but they blow all their profits by smoking or shooting up their own product.
On top of that they destroy so many peoples lives, including their own.
It's not a recommended business model.
Avg? Lose $. These would be typical 'aint ****' ****as. Some more rare than a high school QB turning pro? Stack a million to the ceilin', fareal.
"On my road to riches, I done ****** a whole lotta bitches that ****** off a whole lotta figures..."
It was depends on how much they sell and buy for.