Very unscientific, sure, but my own experience has convinced me that the ecig is only an alternative, like they say, not a replacement. I enjoy that I am now officially a non-smoker, but I do miss my analogs, sometimes. Over 30 years of smoking the nastiest, harshest tobacco out there and I enjoyed it all. Yes, I still got a "buzz" every morning with the first of the day and anytime I went a longer than normal period without. Ecigs don't provide that. Like my tobacco, it didn't take me long to locate and buy the highest strength nic (75mg) I could find to reproduce the same effect. I found out I could get myself feeling oogy, but that's as far as it went, no "buzz", the feeling of calm, brain stimulus, not even a good bowel movement. I've described to my wife (a lifetime non-smoker) it's kind of like being in a mental desert. Just kind of a constant mood instead of the rewarding uplift, satisfying focus I got after having a smoke. Yes, there's no doubt alot more at play here than just the nic, but atleast I can quench the craving. I just wish I could have a good bowel movement, Ha.