This was me, a year ago. I quit smoking the day I received my kit in the mail, and then quit vaping about two months later and sold all of my stuff. I did fine for about 10 months and then started craving...not so much cigarettes, but the act of inhaling smoke or vapor, so I purchased some new PV's and I'm back at it. I'm currently vaping 6mg or zero liquids. Some people ask me why I would want to reintroduce nicotine into my system after being off of it for so long, and I point them to the positive effects of nicotine. It really does calm me, and to be honest, I don't think it's as addictive as everyone says. I believe that most of the addiction from cigarettes comes from the chemicals (as you noted, dormouse) and just the act of smoking itself (hand/mouth fixation, inhaling, etc). But that's just my opinion.