Am I nuts?

I'm guessing it's an early Audio Research? In that case, there are many other possible candidates out there. Don't get me wrong, I'm an ARC fanboy. 😉 But you simply can NOT get lasers for the early ones anymore...

In fact, I'm hoping I can still get an Accuphase DP-90 repaired!

Not necessarily, I have a Sony CDP-2700 that has a born on date of January 1996.  It was my daily driver until just a few weeks ago when I relegated it to my second system. Nothing wrong with it, I wanted a remote.

All the best.

JD

I agree with @brubin You can buy a Bluesound Node for $600.00 and have a nearly unlimited library through Tidal.

Never anything to lose if the price is right. But when it comes to digital, the happy path to best sound is go latest and greatest that checks your boxes. Need not cost much these days but many options to choose from. Going old school may be easier in that sense. Digital these days can be pretty confusing. But the good news is there are many options and most of them are good, much better than years ago.

For example you could play your CDs on a computer and go digital out via USB to a nice modern good sounding DAC. Or be brave and explore ripping CDs to a library and streaming from there. That’s what I do. I buy CDs still but never play them....I rip to library and stream from there. Free version of Plex can be used for that to start.  I would recommend exploring that option at least if you are at least moderately computer savvy. Still maybe not for those who are not.

How stupid is that?  I think you answered your question already.  Why would they sell a 15 year old CD player?  Maybe they are streaming hi-res music instead and they are joining the new century.