Smoked for nearly 40 years. Tried everything to quit. Was completely miserable even after a year of abstinence. Started vaping in December of 2016. At this writing, I have only one week of vaping. Last few days I have smoked a few (~3) analogs a day. I am not concerned with this as my analog habit was 1.5 packs per day. Vaping is not registering as quitting to me. I perceive this as purely preference. I am on a "pink cloud" with this change, so time will tell where it goes. At the moment, I'm ecstatic.