The faculty does not smoke. Neither do I - never did, actually beyond occasional social smoking in a bar. I don't do that either anymore.
I don't think I will win them over with arguments either. They all work on the side and live on shoestring budgets, so the wallet argument won't get me far I'm afraid. In fact, I doubt any argument will get me far - I have plenty of arguments, and they themselves are a smart bunch, but the need of socialization is stronger than any argument.
I am interested in finding a way for them to socialize some other way during their breaks, so that those that want to feel included do not feel pressured to take up smoking as well as tends to happen. It's the breaks between classes - they linger in front of the building and smoke. New students who want to be "in" start smoking too.
Maybe there is nothing I can do, I don't know. Students do need to hang out between classed and after, it's a big part of the school, I just regret that at our school the ticket to the in-group are cigarettes.