@hawkeye10,
I'm not going to argue your personal views of pleasure, at least re smoking.
I smoked one to three packs a day for twenty years, and it took me a second time to quit. I quit just after turning 40 since I had by then become more interested in running (pah, I was a long length jogger) and swimming and being in the med world read the no's. The second time, it took. I was probably 35 the first time I quit cold.
Me, an allergic sort at the best of times, I learned that I liked breathing. No way I'd go back, I like breathing a great deal.
Smell has nothing to do with it for me, as I've always had an extremely diminished sense of that and of others' repulsion, which to me were simply words.
As someone who rarely can smell, including in a stockyard, I mark out what others do, but that includes a lot of things to pay attention to that I personally don't notice.
Some of us have been around copd and some of us here on a2k have it (not me at this time) - my first time with a patient at the office where I was an aide after classes in college - and started to recognize it, but by the time I do recognize it, it is already in progress.
Pleasure is air.