My grandpa quit smoking before I was born but all through my childhood I remember my grandparents house having a very distinct smell and I grew fond and nostalgic about it. I later learned what the smell was and I still kinda like it.
I agree with the sentiment. I can't stand the smell of people actively smoking cigarettes. Gives me a headache. Places where people just finished smelling or where a lot of smokers were? Don't like that either.
But the occasional house with smells? Almost cozy.