Nicotine is a stimulant, like caffeine. As an artist, it helps me stay focused on projects that last hours of concentrated effort. I also enjoy the effects, much like I enjoy the effects and taste of coffee.
I've been going back and forth on quitting. I technically think I'm still smoking, as I'm still enjoying my addiction to nicotine, and engaging in the habits, but as this delivery system is SO dramatically less dangerous and harmful to my body and belongings and neighbors, I'm in no rush to quit using it. The cost is also a nice benefit. It's also liberating in a way, as I don't have to stand in a parking lot at midnight smoking a cigarette (my complex is 100% smoke-free). I'm also having very different cravings, they're not as strong and demanding and as constant as when I was smoking cigarettes, and that alone is worth it.
I'm out of real cigarettes right now, with no plans to buy any. If I do, i won't beat myself up, because one or two a week, or even every couple days, is so much better than the 2 packs a day I was doing. I'd like to say I'll never smoke a cigarette again, but it won't be the end of the world if I do.
I'm in the wait and see camp. I'm a month in, so far so GREAT, and I don't see any issues going forward.