Your doctor's response sounds like a typical non-smoker's response. Most general practitioners are so against smoking, they think that people are just fools for it and that it is hard to quit, but not anything more than getting over a stubbed toe. On top of this incorrect analysis, not too many know anything about an electric cigarette. So they think you're just doing pretty much the same thing. Don't let your doctor hold you down. Switching to ecigs is a big step and for someone who smoked as long as you did, for anyone - especially a physician, to expect you to cold turkey quit seems ridiculous. Even if you had ZERO urge, crave, or any kind of dependency for the nicotine, your psychology would cause you to reach for something that you inhale and exhale, due to the time you've been a smoker. Ask your doctor to try picking up drinks without using his thumbs all day. Then ask him how many he's dropped the next time you see him so he can understand learned behavior.