like giving up smoking, it is something a person has to want for themselves. I am not sure why I was so sold on the idea of ecigs in the first place really. A colleague told me about them after he had seen someone with one who he had spoken to (he has one, but I have never seen him use it). I was fascinated and looked it up online straight away.
It's funny that you mention this because I had to sit here and think why did I want to try this. Like a lot of smokers, I didn't want to quit smoking. I liked smoking, I liked the way it made me feel (for the most part), and I liked the way I looked doing it...haha. So for me, I wanted to try vaping because I hated that I smelled like an ashtray. My partner didn't like kissing me and people didn't like to be around me when I smoked. So now, instead of getting glares from non-smokers, I'm getting inquistive looks.
Whenever I try to upsell these things to friends and family I go with the "smell factor." It's one thing that even smokers can agree with - they stink.