As someone who buys a shit tonne of vintage and retro items all the time I need to tell you about the “shart zone” and “prime nuclear cockroach material”
when buying used items i will do anything in my power to avoid the shart zone, which is in the range of 5-10 years old, this is a short enough amount of time for especially electronic items to have not found a way to fall apart horribly but have become out dated enough to have no support and likely will not retain any value. I do however LOVE the nuclear cockroach material zone which is anything 20+ years old. If it still works after 20 years it is going to work forever. A great example of this is my pc which exists in the shart zone and has to be revved up to turn on lawnmower style, but my N64 works fine.
The same goes for clothes, I wear the same 40+ year old knitted jumper EVERY DAY and it only has two small holes in it. It’s less that they don’t make them how they used to and more survivor bias. You don’t see all of the retro items that fell apart within a year because they got thrown away. You only see the nuclear cockroach material that will still be here at the heat death of the universe.