Cocaine use (and to some extent drug use in general) among those 18 to 25 perfectly tracks the housing bubble. Check out this chart from the Substance Abuse and Mental Health Services Administration:
About one in five adults 18-25 -- the people most likely to buy off the street -- loved him some kind of high in '07. And while coke usage (the green line) rose after the last recession, it dipped as housing fell from its peak in '05/'06.It also seems that certain drugs weather a recession better than others. Look at the blue marijuana line. Usage is down from '02 but up slightly from '04. Much the same can be said for the black line which, essentially, tracks "pills" and their non-medicinal use. It's up overall since '02.
Some gangland figures hit by the recession, mainly due to the falling demand for cocaine from recreational users, have begun to smuggle cigarettes, though the diversification is still in its infancy.