Hartwerger,
That's a nice meandering non-answer. Thanks for the thoughts. Actually, I've found myself in that exact situation where I am revisiting music from past decades and really enjoying it. I'm very happy that I kept my vinyl collection. I doubt that I would ever sell it. Plus, right now my vinyl sounds better than my CD's. Besides, soon CD's will probably go out of favor and I'd much rather sell those if I had to choose. Let's face it, the marketeers of large corporations are the ones who dictate which media formats we consumers will be allowed to purchase.
BTW, if you want to cleanse yourself and eschew your materiality, I'd give a good home to your Mapletree preamp and Music Reference amp. :)