May be there is a similarity. Some people think they need a lot of different guns. Some people think they need a lot of different vape rigs. One atomizer and two different mods will keep me happy for the rest of my days. If you think you need firearm protection at home all that's needed is the mighty Remington 12 guage pump, highly respected by bad guys everywhere.
I don't disagree; we really only need one good set of tools. But being a recreational shooter, watching gun vids is watching porn. There's always another new toy, add on, gizmo, thingamabob, whachamacallit. For me, part of the interest in vaping is also the hardware, accessories and variations.
For instance, I started out with a Minikin and for a few months it felt like it was all I'd need. But the itch to try out a DNA200, plus being egged on by my friend, I picked up the Triade and Therion and WOW! A whole world of experience. Prior to having made those purchases, I relied on the videos and still do for recommendations on hardware.
With the new regs in place, I'd expect there will be a lot less content thats easily available and in consequence, demand will also plunge significantly around the world till brands find a way to develop new channels to reach buyers.