I think most of the above suggestions from
@crustyfolker are eminently sensible, and in truth the smart retailers are already doing many of those things. As vaping becomes more and more mainstream, the outlets that want to stay in business will adapt to market forces. Clique operators are already folding. A year ago there were six vape shops within three miles of my house, now there are three and the ones that have closed had several things in common:
Elitist staff telling people more Watts = more "advanced".
Shops with their own micro-climate weather systems, i.e. cloudier than home made beer.
Selling mechs to people who didn't ask for them.
No customer loyalty schemes.
Poor advice to first timers.
Lack of product expertise and too many products confusing inexperienced buyers.
Unkempt and inappropriately dressed staff.
Interestingly, the shops that have closed were there first, but they lost out to incoming competition because they failed to adapt to the development of the industry, treating it as an esoteric sort of nerd club (even though they were nowhere near as knowledgeable as they tried to sound). They didn't recognize that it's not a niche market any more. The ones that survived are professional retailers who don't look down their noses at ignorant customers. They watch the forums, read the reviews, and in one case even ask regular customers to review new products in exchange for freebies.
What I'm saying is, yes we all know what a lot of B&Ms are doing wrong, but we really don't need to worry because as more and more people are kicking the weed in favour of vaping, shops have to cater to an increasingly broad customer base and the professionals will get better while the cowboys fall by the wayside.