That's probably due to insurance companies charging huge amounts more health insurance for smokers.
Especially in places like NYC, cigs are very expensive.
I believe (iirc) that legality is quite recent (possibly from the ACA), but I'm pretty sure that is news within the last 20 years.
In that search, I spotted a study that stated the surcharge does not increase cessation but does decrease uptake. Which makes sense, tobacco has a higher relapse rate at 6 months than compared to relapse rates for cocaine or heroin.
High cig prices have a similar effect for youth smoking. Smoking is an infamous example of inelastic demand (that and gasoline were _the_ examples used when I was taught elastic vs in-elastic demand in grade school)