The Onion

There's a myriad of reasons to retain a healthy variety of outdated cables, but the most important for me has been ones to make digital archives. You probably have some hardware laying around in your attic somewhere and, someday, you may wish you had archives of your content. If you don't, you probably know someone who does.

Old tech like this is something that would be nice for your local library to keep stock of. I've been to libraries in the past that had a section carved out as a "library of things," where you could rent odds and ends like sewing machines, non-consumable art supplies, and even assorted computer equipment. If your local library doesn't have something like this, maybe you could propose that they start one and perhaps donate some equipment to help them get started!