I’ve gone around and around with this issue for some years now. I have approx. 1500 CDs and at least that many LPs. Over 1/2 (maybe 60%) of all of them are classical.
I’ve read a lot, talked to people in the business, schemed and planned how to convey all the LPs (stored in 9-10 heavy cardboard boxes) to this or that store that may/may not actually try to sell them. The paradigm seems to be A. drive 100s of lbs of LPs and/or CDs to the place; they go through it all, decide to sell <10%; then go pick up all the leftovers.
None of it works for me. I reluctantly concluded I’ll end up throwing them all out. Even that will either be expensive (pay someone to haul it all away) or effortful to the point of self-harm (after many shoulder surgeries, very hard to manage the boxes holding LPs).
I wish it weren’t this way, but it is & there’s no sense denying it.
PS: I no longer delude myself that there’s any money in all these recordings. I now look at it dead weight to be dealt with.