In a real-life point of view, no. My father smoked when I was a child, and I absolutely hated it. Not to mention the smell. I personally wouldn't, and in the real world smokers are no more cool than anyone else. That being said, anti-smoking groups are a bit too far. If they want to strain and poison their bodies, let them. I'll be on the other side of the room enjoying my liquor.
But what I'm trying to get to is the contrast between the genuine and the fictional appeal of smoking. In real life, it may not equal much, but in a story, a cigarette can go a long way. It's generally the trademark of private eyes and detectives, not to mention the mountains of cliché action hero badasses. But it symbolizes much more than a blatant disregard for one's personal health. Unless you're one of the bland action heroes, it symbolizes turmoil and mental stress. In most of my stories, my predominately troubled characters (Whether they're fighting a fairly recent problem, or haunted by the past) smoke. It is, in all means, a form of escape, of easing the burden placed upon them. Unlike the real world, people can be more. A simple nicotine addict can be a worn veteran who uses tobacco like a weapon in the constant struggle with his past and the mistakes he's made. A policeman could turn to smoking not because of some mundane reason, but because he needs something to drown out the sad-but-true statements of his conscience as he is slowly torn between what his job and his sense morality each tell him to do (Of course, this one being in a somewhat dystopian/anti-authoritarian setting).
So in the end, it's cool as a symbol, but not in the flesh.