None of your cassettes are listed for sale anywhere on the two biggest physical media sites (Discogs & Ebay) That obviously has a lot to do with the sales numbers.

You probably should list at least one each on Discogs just for the history & discography. It can be frustrating though. If you know somebody that's a member they can do it for you. (One cassette is mentioned on a CD reissue's notes.)

Unfortunately any effort to sell them will involve moving them to the new place so...

If you do list them for sale be sure to mention Mint++, Factory Sealed but maybe hold off on the autographs unless requested. If they don't move you can always bin them at a later date.

Same-same your "Anonyma" stuff if any.