This is why I think the future of vaping, as it becomes more popular, will continue to be centered around the njoy, Blu, e-Swisher models will be the bigger part of the overall experience. e-Swisher doesn't even sell online. The sheer complexity (and expense) of finding an alternative works against the practice. Convenience will win out. We all dealt with the logistics of keeping cigarettes in stock but even there a majority buy by the pack vice cartons which is relatively more economical and so on.
Disagree. This is a whole forum full of people, we are the forefront of vaping, and I'm willing to bet that less than 20% of us use the brands you mention. E-swisher? Never heard of it, probably because they don't sell online. There will always be those like us - I guess some might think of us as the "roll your own" crowd, when compared to the people that buy Njoys, but the advantage of superior performance definitely wins over convenience when you're talking about vaping. Njoy (I'm only picking on it because it's the only one I tried,) might be a start, but it's definitely not the end of the journey. I don't even want to think about the advisability of "disposable" batteries in the hands of the lazy or non-recyclers.
Regarding convenience, I have a couple of clearos. I put a little juice in them in the morning, which takes about 30 seconds. When a head is bad, I unscrew it and put on a new one. A minor inconvenience, yes, but since I buy about ten at a time, and each one lasts me at least a week or two, it's much less inconvenient than buying a new pack of smokes every day, looking for a place to put my cigarette ...., etc.