Ideal solution would be to make the control system a separate user serviceable module. For example, a smallish cartridge with perhaps a board-edge connector tha

Ideal solution would be to make the control system a separate user serviceable module. For example, a smallish cartridge with perhaps a board-edge connector that can be swapped out from underneath/rear with all "digital" connectors. Then build the high-end audio gear into the chassis, such as a solid quality amp and speaker pair. That way only the the electronics needs to be swapped should the audio quality still be sufficient. I'm not an audiophile by any stretch, but I appreciate a decent speaker. That being said, solid audio equipment can last much longer than digital tech can. A system like above could even bring about a new sub-market around swappable chassis. Allow a customer to purchase a chassis in multiple styles and colors for less than a full module. That might mean people would be more willing to buy a "fashion swap" should they redecorate.