for me, what matters is the coils it takes.
gotta be cheap n long lasting.
This one probably has no traction.
I have a thought though. I don’t know if it’s a good thought or not. I lack data. Specifically comparative sales numbers. Additionally this based on earlier systems. It is possible this has been tried and found wanting in which case it is useless. Might be worth a look though.
There is one that historically appeared to me to be though: non unrebuildable coils. I use this term to differentiate between it and full rebuildable. Most people who vape coils change the coils. This has always been true. For some coils though rewicking and rebuilding was possible, just annoying. A coil that is possible to rebuild provides an element of surety. IF a person falls on hard times it is still possible to vape. Cartomizers with this feature often dominated the market until such time as someone attempted to reverse the ability at which time they promptly failed. The ability to restore a coil to functionality seems to me to be more important than the act of actually doing it. Coil sales were somewhat lower. How much I do not know, but likely not much compared to the increase in sales. Again there is probably actual data somewhere. Generally these coils could only be rebuilt a number of times, and doing so was annoying. It normally involved removing the center pin and pulling the rubber insulator plug. One them recoiled the atty and replaced the plug and pin. The plugs were fragile and generally eventually broke. Getting 3 or 4 recoils out of a carto was fairly common. Getting more than that was uncommon though. I bought CE3s for a long time purely because they could be rewicked. I didn’t actually do it much though. I’ve still got a big jar of used CE3s somewhere. I kept em, but I also kept buying new ones. It was easier.