I think to an extent everyone has a point.
There is the entire range of products, quality, marketing mumbo-jumbo, supply and demand(intentional and otherwise), status pieces, true rarity, overblown hype. It's trickier when you get down to opinions about an individual product and where it might fall in all this.
There is plain junk being manufactured, some of it is sold super cheap and appropriately so. Sometimes that same junk gets jazzed up, marketed and sold for absurd prices.
I see your point, but I honestly don't know if you can make any real general statements. If you're saying that devices are being sold for more than what they cost, I'm sure that's true. But it's true of everything, cars houses and bicycles too. If you're saying that for ecigs the multiple is just too high, maybe so. But this whole market is so young relatively speaking and its exploding at present so I would say its safe to say you'll see all kinds of behaviors going on. It's definitely buyer beware and its kind of a jungle to navigate anymore, there are exponentially more people making mods of all kinds and so many more kinds available. I cannot even keep up anymore, lol. I would bet there are a very small number(if any) of people who could speak with any real authority on the whole range of what's out there.
I try to do my homework before I spend money and occasionally I feel like I've been had, but st the same time someone else might have been perfectly happy. No doubt there is junk being sold at all price points. But there are also really well made, solid devices being sold at all price points too. Where you think a particular device falls is a matter of opinion. The never ending Provari argument is just one example out of many. Do I think that device represents good value for the money they charge? Yes, I do. But that's because it works for what I want/need and I'm fully aware that there are a ton of people who feel the complete opposite (and think I'm nuts

are they wrong? No. But neither am I
Buyer beware, its most certainly a jungle out there. There are a lot of great devices, there is very probably one that will suit the needs of both your vape and your wallet. Also there are many people actively cashing in on this young market, to the OP's point is a serial number on a 200 each run worth a premium to me? No, and I don't think it justifies one either. But the people buying them clearly think otherwise and as long as they are willing to pony up, I guess it'll continue. Probably not forever , but clearly for now....