I'm cleaning the kids' closets (engineers, left long ago) and have boxes of programs and programming language packs, discs, cable, computer parts, chips, electronics, a CRT of all things, bits and pieces of frames they used to build computers, and
all of it is obsolete and will get get pitched or recycled.
(and yes, I did ask them. I still hear about my mother pitching my brother's baseball trading cards...)
You could probably sell some of that stuff on ebay in the "vintage computer" section.