I can see tobacco becoming effectively a Schedule III type substance, made only when it is deemed necessary for some reason and not generally available - New Zealand tried to set off on that path, the UK is attempting it now, unlike booze (or marijuana) which has a population of people who say "Hey, that's fun, don't take that away" the smoker are almost all against smoking, they see it as an unpleasant mistake they made rather than a choice they're glad to have taken.