It doesn't work like that, IMO. You don't hear from the carto tank crowd all that much, but there is still a large one out there. Simple reason; with a carto tank, there are a lot fewer variables to deal with, so folks find their formula and pretty much are good. No rebuildi g, no getting a new wick to work with a new juice, just fill and vape. If you want fire and forget, relatively trouble free vaping, carto tanks are that. The downside is that you can't rebuild and rewick to fine tune your vaping, and that's where the rba / rda appeal comes in. Rebuildables also usually provide more intense flavors and throat hits with bigger clouds, so some have switched for those reasons. Carto tanks will probably never die, simply because they are consistant, satisfying, and easy to manage.