I second that!@johny_2000 brings up a point that's been on my mind for a few months now.
There are no longer any spare parts for many good HiFi devices from this century, e.g. replacement boards for AVRs, CD players, amplifiers, etc. This also applies to devices costing 1000 or several thousand $/€ from e.g. Pioneer, Yamaha and many other large and small companies .
Even if you get the BGA, FPGA, etc., which is often no longer the case, you still lack the software/firmware to do so. And these companies don't release it, or it's been lost.
In the end, many of these devices, which are often built like tanks, end up on the scrap heap.
I’m working for a Company making products that are expected to last 10, 15, 20 years… or more, and are priced in the $100k’s. Electronic components obsolescence is a big problem…. When a 10 cents component failure can lead to scrapping a $500,000 piece of equipment. The strategy used is to “modularize”: higher functional level daughter boards, boards, or even complete control units. Replacing a $2,000 module is usually acceptable on a $500,000 equipment.
The problem with audio equipment is that cost pressure is too high to implement a similar strategy: when a component fails and is no longer available, you end up scrapping the whole thing.
Right-to-repair advocates may call OEMs to force the design of “repairable” devices…. It can be partially done in some very specific cases, but it’s a lost battle IMO.