A goal of mine is to ensure that my library is preserved in some fashion after I die, because I do believe it would be valuable. Many of the books I have are out of print, rare, and obscure. I have a fantasy of a library room set aside with my collection - a couple of comfortable chairs in a little nook.

Especially with the way that AI has polluted information sources online, I think having a collection of the printed word which is guaranteed to be vetted and written by humans would be useful. The religious material I think also could be helpful in preserving history - eg, I have versions of Mormon books which are likely not consistent with current doctrine.