What will black market prices look like? Im thinking 75 for 30ml. A new 510 kit for $$$?
Not a chance, first off there will not be a ban, not a chance in hell of that happening.
There is no way they will ban a product which is safer than the legal analogues, the legal aspects of doing that are horrendous.
Secondly even if they did the blackmarket price would not be high as they
will not banned in every country.
For example I smoke blackmarket tobacco I pay half the normal retail price,
the 'smuggler' is making an 80% profit on it, I could buy it my self in Belgium (I'm in UK) for almost a quarter of the price I would have to pay here, but it's not worth the bother.
Anyway I have not smoked 'legal' tobacco in over 10 years!!
I don't see wwhy I should pay exortionate rates of tax.
OK it's a little harder maybe in the USA as you are more 'isolated', however you have a 3,000 mile long border with Canada. what they gonna do build a wall?

You also have a massively porus border with Mexico.
Also do you have any idea how easy it is to smuggle juice?
Any idea of the profitabillty of doing so?
Take current prices of 10-30 $'s for 30ml. Thats a 150% to 650% profit per
30ml. In one 5 gallon can you can get 630 bottles.
Going on the 30$ price costs about $20,000 so thats a profit of $30,000 to
$130,000 or a 5 gallon can!!!!!!
Work out yourself the value of a carr load of it!!
Or a truck full of it, or a shipping container.
And of course it can be much more concentrated than that.
You can take a holiday to any country where it is legal and pack a couple of years supply into a suitcase. Just get a legal cigarette box and back it with bottles of ejuice, gonna be hard for a sniffer dog to detect!!
Think they are going to throw you into jail for smoking a much safer product
or trying to quit?
The idea is ludricous!!