I’m really not a fan of smoking cigarettes at all (although cigars are nice every once in a while), but I do wonder if a study has ever incorporated the social aspects of smoking. Social life does have an effect on life expectancy, although probably not enough to make up for the loss of life caused by smoking.
The only real appeal of smoking to me was the fact that one has an instant social situation with other smokers. Nowadays, non-smoking strangers with time to kill end up staring at their phones. Although I wonder if smokers also do the same thing…