I think we're all in agreement they are very wasteful and shouldn't be encourage as a regular vape, the degree of waste is down to whether you're in a TPD zone or not, as I pointed out; the TPD ones are a terrible waste but the larger capacity 50mg ones have some value for me, I would buy one for my morning nic high and after prolonged periods where you cannot vape, one would last me months and I get to re-use the battery afterwards, up-cycling is almost the cost of the battery.
But going back to their value for people looking to quit smoking, I could let the wastefulness slip for now, how many smokers are there that think vaping is too much hassle or daunting? a disposable has to be a good thing to temp those folks away from ciggies, faff free, rip open the pack and start vaping.
The hope is that they will be a bridge into less wasteful vaping, I honestly wish these were available when I was forced into quitting ciggies, I remember the grief I had with my first 2 setups from TW, dry hits, spitbacks, coils dying, no immediate satisfaction (which led me to dual fuelling), no frikkin clue about settings or wattage etc.
I enjoy electronic gizmos so I persevered and eventually began to wean off the smokes, but I know there will be people less persistent and dismissive "I tried it, it's not for me" types.
This is all purely opinion, I have no clue if studies have been carried out but I think it would be interesting to know, perhaps
@Mawsley could shed some light?