I hope my mention of this doesn't turn you off to ECF, because there's a lot in here you ought to know about:
The acronym OP means Original Poster, and only that. It does not defer upon you the power to manage or moderate the direction that thread takes; if it evolves in a manner not to your liking, that's the chance you take for the time invested. Also, if you're the first to drop mention of the subject of addiction--as was the case here--don't be surprised if others have feverish opinions on the topic.
Many of us have experiences with cheap e-cigs. Frankly, few of us have good ones. But for the sort of novelty use you appear to have in mind, you've done well not to have spent more than you have.
Here here!