I think in new york city the decline in crack use is a lot more obvious than anywhere else because from reading about a number of busts that involve cocaine operations recently, and the numbers aint all that big so i wouldn't be surprised a lot ny organisations and gangs are selling more heroin, mollys and other pills than coke. But there are still neighbourhoods where crack can still bring in good money like this guy who was busted last year. http://www.nytimes.com/2013/10/16/nyregion/11-charged-in-lower-manhattan-drug-ring.html?_r=0