(I'm only 22!)
First off, I usually smoke in the comfort of my own home, or my car.
Secondly, if I'm doing something for work or school, and I'm almost certainly doing it hurriedly, just a natural pace. But again, I'm 22. I have met a great many pipe smokers who are a bit too...glazed over for me. The reason I like the pipe, is it gives a time and an activity in which to be glazed. Let's you slow down for a moment.
I can't remember where I read it, and even if I did I'd be suspicious, but I recall seeing a study saying pipe smoking males lived longer than their non-smoking counterparts.
So there. I'm going to live forever, while you all keel off early with your perfect lungs...muahahaha.