I smoked for about 10 years. Quit for about 2 years. Started again for about a year when I started dating a hot young chick that smoked, but quit finally a few years ago. I don't miss it. I used the patch each time I quit. Really helps break the habit, IMO.
I do have a dip every once in a while. I don't consider myself addicted to that though, having known what real nicotine addiction is like. My girlfriend knows that I do from time to time, but she has never seen me do it. I know it's kinda gross with all the spitting so I don't ever do it around her. It's more of a guy thing.