It took me about 3 to 4 weeks to finally quit the smokes. I started with a locally bought 21st Century Smoking kit then got a 510 starter kit and was still smoking 5 or 6 cigs/day. I set myself to a final pack finally. On my second day of quitting I got some fairly strong cravings and had one of my wife's cigs, and that was my last one. If I went more than 3 hrs without a cig, while I was smoking, I would get shaky and short tempered.
I've been vaping since March and no cravings for a cig since then. But then vaping has become a 'lifestyle' for me; the majority of my free time is spent either here or working on some aspect of modding
I've known people who could smoke most of a pack of cigs while partying and then not touch them for month(s). There are different levels of addiction to cigs.
ETA:

I DID love vaping from the start! I love gadgets so vaping was, as they say, right down my alley

. Just took me awhile to ditch the 'stinkies'.
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