I like the idea of a different kind of hangout place, since I'm not into drinking (or spending), but so far I'm not sure how much vape bars answer that need. I've been to 7 of them and so far have yet to encounter one with loud music, so don't know what that's about. They do vary greatly in size, and the small ones sometimes seem clogged with hangers out. Only 4 of them had bars with stools, really inviting you to hang out, although 2 others had a sofa and coffee table type area.
Only one mixes their own juices on location (Vapin in Thornburg). If you ask them, they will tell you they don't actually formulate the flavorings. I presume that is done in a more lab-type environment. This is more to give a you a fresh, or known age, final mix, and customization. It only takes a minute and I don't see any need for a lab at this step. I would be more critical if they didn't have one of the best flavor lines overall. Of the other 2 with their own juice lines, one I'm not sure where they make them but have been around a while, and of course the Avail chain stores don't make them onsite... Of the stores that carry other brands, I'd like to see some NETs and/or WTA juices, just carrying more expensive brands isn't that innovative or interesting.
As to the business side, yeah there's probably going to be some settling out of the market. It's a lot better for me now than it was when I first experimented 2 years ago and all I found locally was tobacco shops with a smattering of cigalikes and an insanely overpriced mall kiosk. Compared to that, they've become somewhat price competitive. For those better off, it's not unreasonable. For me, it isn't so much that B&M prices would make me feel like I'm overpaying, it's too expensive to consider at all. I think one reason they're blooming so fast right now is a need to "stake out their turf" before others become too established in their territory.
I'm amused and not bothered by the vapor haze when I walk in, although overall I don't think the cloud chasing focus is a good thing for vaping in general. Good for selling high dollar equipment and more juice, obviously. 'Nothin wrong with having a little fun with it but I don't see it as a natural progression for all vapers, and isn't particularly favoring progress towards devices better suited to me, either.