I have CDs from the 80s that still play perfectly. The only CDs I've had fail were a multi-disc set that were packaged with foam padding in the case, touching the label side of the disc. The plasticizer leached out and diffused into the protective lacquer, which softened and stuck to the foam, and tore away when I took them out, pulling chunks of the metal layer with it.

They weren't anything rare so I wasn't too bothered, but it later occurred to me that they technically could have been saved. The data is pressed into the polycarbonate, so if I'd very carefully peeled off all the metal, ideally in a laminar flow cabinet to avoid any dust, and then had them re-coated in aluminum with vacuum deposition, they would probably have still played. I think this is true for CDs lost to "disc rot" too.

I don't have any nostalgia for tapes. I used them as a child, but I never liked them. The first music I bought was on CD. I still buy a lot of used CDs on Ebay. Lots of great bargains are available and they sound identical to brand new CDs. It's worth finding sellers who'll combine postage and buying in bulk or you'll end up paying more for postage than the discs themselves.