That's usually due to people trying to use "cigalikes" to quit smoking.
They don't really work so well for quitting smoking, although some here have managed that feat.
I got to the point of quitting, using the eRoll -- but still superior to most cigalikes because you can use your own eliquid instead of someone's choice who's never TASTED a real cigarette! But I upgraded on my first full day of non-smoking, and I really don't know if I could have stuck with it, if I hadn't upgraded to something that holds more than .4ml or a battery charge that lasts more than 15 minutes.
Cigalikes really don't cut it, and especially the ones where you're stuck with someone else's nonsensical idea of what a cigarette should taste like.
Andria