> There is some revival in oil and kerosene lamps. As another poster mentioned: mass production lowering cost, and newer products like LEDs replacing oil lamps

> There is some revival in oil and kerosene lamps. As another poster mentioned: mass production lowering cost, and newer products like LEDs replacing oil lamps. But there's also a kind of fashion aspect. Some gear might be stuff that nobody wants today. And then it features prominently in a box-office movie hit, some people dive into it on 'the socials', and before you know it, the same items fetch crazy prizes on eBay, Etsy & co. But you can't predict this. Storage & maintenance has an ongoing cost. And some goods never have a revival no matter how old or unique. Worthless now, worthless 20, 30, 50y from now. You could almost say (for traders of such inventory) there's a kind of gambling aspect to it.