It's inevitable that it will eventually become regulated to some degree.
Politically speaking, what needs to happen is there needs to be a large movement towards funding a pro-ecig political lobby group. That way rather than facing the individual shop owner or unorganized locals city, state, and even the federal government would have to contend with a well organized political group representing enough voters to swing an election.
If we, as a group, can demonstrate that we can swing tight elections on state and national levels, then the political parties are going to have to work with us, because they know that if they don't then their opponent just might.
That said, I think we too are going to have to be willing to make a few concessions here. To me, it's almost unbelievable that ecig liquid production and mixing for commercial sale is entirely unregulated. Sure, we would all like to believe the places we shop have nice, clean rooms with employees who know what they're doing and maintain a healthy environment for mixing. We would all like to believe that the ingredients going in to these liquids that we buy are safe.
But are they?
Is the PG or VG in your liquids FDA approved, or are they cheap Chinese industrial grade blends? Where did the nicotine solution originally come from? A clean laboratory type environment, or are they out in some Chinese or Indian jungle throwing tons of tobacco into a giant vat and breaking it down with xylene, a carcinogen? Do we even know?
I'm really not bothered about some regulation in regards to the quality and safety of the liquids. I think we should at LEAST have the same amount of regulation as a restaurant that prepares and serves food.
What I am VERY worried about is the banning of public use without evidence of any public safety issue, and the over-taxation.
Ultimately we're going to have to find a way to challenge the bans in court to stop those, and we need an organized lobby group that represents enough voters to cost politicians their jobs to stop the taxation.