Enabling use for people with respiratory ailments or other physical constraints, also of course the automation of vapour production which allows for greater consistency and repeatability of extraction.
I have asthma (luckily it's not too bad but it's still a PITA).
I personally find bags harsher.
It's something about the vapor sitting that make it feel stale or something?
I think a lot of the "hate" on bags you see around here is just people informing new a that the volcano isn't king...
Just about everyone who isn't into vaping still thinks the volcano is king.
So any newbie who comes in saying "I want a volcano because it's the best" is going to get an education on all the downsides of a bag.
Eg
Worse taste - a fresh bag can potentially have a bit of a plasticy taste, an old bag has a stale vapor taste.
Staleness - letting vapor sit in the bag makes the vapor more inpleasant IMO.
Cumbersome - more smelly pieces to store/use (and most bags crinkle really loud for some reason)
Washed out vapor - I find that a bag setup tends to give more diluted vapor than direct draw. So while it may be consistent, IMO it's consistently a worse experience...
If someone is asking for advice on a vape to get, and expresses a medical need, or a well thought out personal opinion on why they rather have bags, they'll get good answers.
If someone is just blindly parroting cano love, then they'll get educated...
I thought bags looked like a really cool option, then I tried a bag vape and saw all the downsides...
Sure they are great for medically impaired users, but in general discussion, I assume everyone is fully-abled unless they otherwise say so - for a fully-abled person in general discussion, IMO bags suck...
(Hell, IMO whips suck too for most of the same reasons
)