On a more serious note, here are some ideas yet untouched:
1. Different development of pesticides. Tobacco-water was one of the earliest bug sprays, and is still pretty cheap and useful even today. Boil up tobacco and use the water on insects. Kills them pretty quick. I use stale pipe tobacco and cigar butts for that. Yes, I am aware of the irony.
2. Different native American religions. I've tried Indian Tobacco, yes, it is much stronger, but unlikely to become popular. Throwing up happens long before anything interesting happens. I would not catagorize it as hallucinatory but more dissociative.
Also Hendryk:
If a bar owner is okay with me smoking in his bar, then who are you to demand that he tell me to put it out in his own bar? But hey, once they get me, they're not going to stop. Fatty foods are next.
ObWI: No Trans-Fats