I know I'm derailing my own thread here, but did you listen to John Eliot Gardiner/Orchestre Révolutionnaire et Romantique set? His seem the most "on-point" of all the Beethoven Symphony sets, HIP or otherwise. The live videos are even more intense:
I have a few complete cycles, including Gardiner, Hogwood, Brüggen, Szell, Leinsdorf, 3 sets by Karajan (I like the films the best out of his sets, because if I get bored there is always the visual to add some interest haha!), and some other sets I can't recall at the moment, plus assorted singles of the 3rd, 5th, 6th, and 9th. When I first got the Gardiner set, I very much liked it and thought it was better than the Hogwood, but I later changed my mind on some of my favorite symphonies, where I prefer some things that Hogwood did.
My favorite cycle is probably mostly unknown, the set Lan Shui did with the Copenhagen Phil. Pity it wasn't recorded by BIS, or perhaps in a bit warmer acoustic, but the interpretations feel completely right to me. He's one of a tiny group of conductors whose work I always love.
I'm waiting for François-Xavier Roth to complete his cycle with Les Siècles, since I love his 3rd and 5th that have been issued already.
I'd love to have the Emmanuel Krivine set, but it's out of print, like most music from the Naive label. Oh well, I guess I shouldn't really be looking to increase my already large collection haha! Oh, it seems the Hanover Band set can be had as a lossless download for only $12 from Presto lol, so maybe that's the way to go on that one, and then burn it to CDs instead of risking faulty Nimbus discs haha.
To bring this back to your original topic, I don't have children, let alone grandchildren, so my CDs aren't Grandpa's relics, but perhaps Crazy Uncle's relics?
It does feel strange to me that something that has such value to me is considered worthless to most. I used to have a ton of DVDs as well, but I gave away most of them the last time I moved. I held onto all of my music, however. I suppose one day I might have to pare the collection down, but I don't want to, since most of it's out of print and a lot is not on any streaming service and may never be.