Depends on what sort of equipment. For stuff like decoder, then obviously an old one will not be able to decode newer things like DTS-MA etc. But for stuff like speaker or even CD player whereby technology remains basically unchanged, then it could be different. Or in the case of recording medium, purist and those seeking the highest quality would even go back to those vinyl turntable. And for amplifier, the sound of a valve amplifier often beat the crap out of solid state amplifier when it comes to seductive vocal reproduction.

BTW, if you can still get to talk to your uncle, then I will be very worried