That seems like it would be cheaper than smoking, in the long run, as well as healthier, of course. I've never been a smoker, but I can imagine that they must be very helpful if you want to quit. I saw those in the mall the other day and told my friend I was going to buy her one for Christmas, lol. She is an occasional smoker but I just hate seeing her light up. She already has cancer and I don't want her health do decline any more.
I got on an elevator once with a person who had one of these and I had to laugh a little, as they stood there smoking the thing. It ran through my mind that they must have been truly addicted to need that thing on a elevator and of course, it was odd to see "smoking" since we've been a smoke free state for so long. It didn't bother me that they were doing it (except I don't want my kids to get any ideas), but I thought it was weird.