Yes do what's best in your mind, but if you aren't inhaling, I don't see the problem, unless you're already starting to get mouth cancer. But do what's best for you, you only live once. The effects of nicotine really aren't bad for you, it's just all the stuff that comes with it. It's true though, alot of doctors view smoking as smoking, where I don't think pipe smoking and cigarette smoking are anywhere near the same, especially if you aren't inhaling. Cigarettes have so many added chemicals which I think are worse for you than the tobacco. Of course the tar part isn't good, but in reality, I could give up the pipe anytime if I had to. I'd say just cut down to a few bowls a week. But do what you think is best.