After buying a few provari mini 2.5 off the classies years ago I was hooked on the quality, size, style and ease of use, buying a bunch more when blems came on sale as of late was a given for me

I think you should take the provari leap
I do not see a lot of smaller vape shops surviving that long.
Credit card companies are already starting to drop vape shops as customers.
If the FDA does not continue expanding the rules/regulations during that time (which they have made every indication they will do so) the states are going to pick up that slack with rules/regulations and taxes of their own, it has already started in several states that ban internet sales, no non-face to face sales, no buying out of state eliquid and new laws on the book already to ban flavors and heavily tax everything vape related.
Also, now the everything vape is a tobacco product every shop will have to apply to get a State permit/license to sell tobacco products even if they do not make their own eliquid, and for those that do they will be manufacturers and also have to apply for permits/license at both the Federal and State levels. I think a lot of businesses will not be granted these permits/license for sales and/or manufacturing... for a lot of smaller shops making and selling their own eliquid pays the rent.
And... there are different FDA regulations businesses have to comply with during this 2 year period too.
Skip the (Regular Mouth) Plastic lids, they do not seal in liquid well and leak like crazy.