Not to take this thread down a rabbit hole and hijack it in the process, but the issue as I see it is there is no entry point for younger collectors anymore, specifically the death of plastics/items being available in mass merchandisers.
Typical path; in the 1950's/1960's, toy soldiers were everywhere, Anytown USA had store after store that sold them, hobby shops were booming, toy soldier stores were popping up left, right and center. A child gets hooked on toy soldiers back in the stone age prior to the internet, video games, Facebook, Instagram, Twitter, then goes into high school, toy soldiers aren't cool anymore, the boy becomes a man.
At some point in his 20's or 30's, something happens that takes him back to his youth; a store window display, a commercial, an ad in a magazine, whatever, the match is lit, the man becomes a boy again and begins to collect toy soldier again. He graduates to matte finished metal and off he goes.
TODAY, kids are not playing with toy soldiers, kids for the most part don't play with toys period; not only that, stores no longer carry plastics, there is no Airfix/Marx/Britains/MPC/Timpo out there today, thus no entry point. As the kids of today age, there will be no match being lit, no spark to cause them to revisit their childhood and start collecting toy soldiers again.
The collector base is slowly shrinking as collectors age, run out of room, run out of disposable income, run out of time and pass away; no one is behind them to take their place.
Will the hobby be gone tomorrow? Next year? Two years? Five years? No, no ,no and no, but it is contracting, shrinking, circling the drain, whatever you want to call it.
It's a sad reality, something I never thought would happen, but when dinosaurs roamed the earth, they never thought they'd die off and be extinct either...................