LastTango - Should I start stocking up?
If you're in the USA:
No*.
If you're in the UK:
Yes**.
* In the USA there are many things that would have to happen before suppliers could be shut down, and you'd get plenty of notice.
** In the UK however there is a good possibility - a probability, actually - that the government will ban e-cigarettes next month. The agency in charge of pharmaceutical licensing almost certainly decided on this course of action several months ago, but were forced by regulations to go through a consultation process that realistically is no more than cosmetic. The only reason they would change their mind is due to pressure from above. If the right people have pressed the right buttons then maybe that will happen - but don't count on it.
It's always possible that the UK suppliers will get a year to fall in line. That would be about the best result we could expect. Nevertheless, most people would consider that a 3-month supply in hand is the best policy in any case with such a specialist product, as at present. You can't go into Tesco and buy what you need, after all.
Even with a 21-day's notice ban, all it means (to consumers) is that UK suppliers will have to shut down their websites and mailing operations, and move them offshore. There would be a gap of a couple of months service while that happened. Eventually, you'll still be able to go to the website as normal, and order as normal, and receive your goods in the post as normal. Moving a website takes very little time, but setting up a distribution centre is not so easy due to the staff issues. Prices would go up due to staff and relocation costs, but postage cost Europe-wide is about the same as local in-country post.
One UK supplier has shut down in anticipation, and many are running their stocks down. What's left would have to be shipped abroad for the re-start - if that's what they decide to do.
It would be yet another blow to the local economy, a blow to public health in several ways, and bad news for those who will lose their jobs. This is unlikely to be a factor in the decision.
As far as consumers go, you just need to have a two or three month supply to tide you over - or simply buy from the US or China, of course. There are no issues with supplies posted in from abroad in small quantities. In order to stop those supplies, laws would need changing, and there appears to be no move in that direction currently. This would not be a popular thing to do as it would affect people who count, as against vapers, who don't (as there aren't enough of them yet).