Stuff is still cheap. Try and sell things and make money. Ebay suggests prices that are out of this world. I saw a Craigslist ad where a guy was trying to sell some off-brand stabilization processor for 250 bucks. Those machines went out with advent of RC (PE) paper.
I recently bought a Leica MP, chrome, "used" from MAP camera, delivered 2 day FedEx to Iowa from Japan for $3200 US, taxes included. There was no box, but it was untouched, manufactured in 2023. Same camera brand new here would be close to 7k with taxes.
People with shops manage to sell stuff at a premium, but costs to sell are high, especially Ebay, PayPal......etc.
KEH ain't what it used to be because everyone is doing it, their costs are high, the equipment is worn-out and there's not as many skilled workers.