Smokes ain't expensive because of the cost of tobacco, though. They're expensive because, like most vices, the demand is highly inelastic and governments can tax the hell out of them without pissing off anyone who matters (once the gentry and the middle class have been conditioned not to smoke - prior to that, they were handed out as rations).
I love smoking, and ideally all those taxes I pay would be going toward cancer research and health care subsidies, but in reality they just go to the budgets of nonprofits and a class of people whose job is to further ostracize anyone who enjoys tobacco.
They regulated all the supplies to grow tobacco, making it all but impossible to profitably grow in the US. Then they added a bunch of tariffs on both supply and tobacco. Then they tax the hell out of the final product.
Cigarettes are super cheap without government interference