Late to start of thread, but I'm pretty sure I have this saved from previous times it's been discussed, here and elsewhere:
My parents had quite the collection of vinyl, as well as a few reel-to-reel magtapes and 8-tracks. My music format (and poll choice) was the cassette tape, which I only reluctantly (and later than most) gave up for CDs. I've also had the chance to handle music boxes, player piano rolls, etc.
I never did get around to replacing the vast majority of my video library - somewhere in the neighborhood of a hundred VHS tapes, I'd guess - with DVDs, let alone Blu-Ray(s). And yes, I do still have working players for both of the former.
These days, of course, most data lives on hard drives and flash drives. Even the notion of physical media and permanent ownership is becoming somewhat passe, in favor of streaming services who'd love to rent content to you in perpetuity... until they go out of business or drop that item from their library, of course. I understand the forces at work, and a Walkman-branded mp3 player which can instantly jump to any of thousands of songs is definitely an improvement over the old cassette model I grew up with... but a part of me is a little sad to think I'll probably never see another media format dedicated solely to audio-visual data in my lifetime.