Originally Posted by saihager
I suppose it still sounds good but I'm also guessing all the inside electronics have aged and lost their values somewhat that it doesn't sound as when new.
In my opinion if there is no detectable degradation to the sound, which is how I read your post, and assuming the unit works and has all the features you want, there is no reason to replace it.
Note: scaremongers trying to sell new gear often invoke scary stories about how the electrolytic capacitors inside electronic gear degrade/dry out/leak over time, hence you "need to replace gear" because "It is just about to have catastrophic failure" or "Well, you may not notice a sound degradation now
, but any day now you will". Don't fall for it. While it is true some capacitors in some gear can fail this does not
mean all do. Also better brands like Denon often last for many, many decades without discernible change, which according to your post would include yours.
Much more likely to degrade over the years are mechanical, moving parts such as the rubber belts which propel the spinning platter (assuming it is not direct drive) or ones used for other functions. Motors themselves also eventually fail. But again, if the unit seems to work I wouldn't worry about it.