Well they classify them as unapproved medical devices and that's the rationale behind customs being able to seize them. As for how tight they are with HC, HC makes the rules and they follow them. As far as hardware being sold in convenience stores, this is in violation of HC's ruling but it's obviously not being enforced right now, which is good news.
I'm pretty lazy but not having to press a button while I vape goes too far even for me

I weigh this with the pain of having to worry about overfilling the cart and frying the battery, you have to be careful and blow it out and such and when I compare inconveniences the manual battery wins. I don't think it's a real big deal either way though it's just that if I am going to try this stuff out I at least want what I want
Bloog says that Happy Vaper will soon be carrying the manual
batteries, I don't care about a kit and can just buy the stuff separately, it's too bad that he doesn't post here though or at least not lately as it would be good to have him chime in on this.