This one's interesting, with compelling arguments on both sides...
Personally, I think the more people vaping instead of smoking the better for all of us. These are entry level devices, and people using them will soon enough start looking for longer battery life, and larger juice capacity...
They will also get tired of the expense of disposables and/or pre-filled cartridges. That drives them to us...
On the other side this whole thing scares the crap out of my boss who's afraid of all the tobacco regulations involved with interstate transportation, selling on-line, flavors, etc...
Somehow we have to force recognition that we are in a 3rd category entirely. We are not a tobacco product. Nicotine can be sourced from many plants besides tobacco. and secondly we do not want to be classified as a drug delivery system.
PVs are a Harm Reduction Alternative to traditional smoking, and need to be recognized as such.
However, regardless of what country you live in, the government has always showed a lazy approach to such things, prefering to lump something new in with something they see as similar, rather than categorizing it as what it really is...
It's that Old Chinese Curse once again, "May You Live In Interesting Times!"