It's not hard to store books correctly, though. My father collected around 30,000 books during his lifetime. (He was a professor at a higher education facility for librarians.) Most of them are from 20th Century but many also from 19th Century and a few of them are up to several hundred years old. They're all perfectly readable. The only issue is dust.

It pains me a lot that the collection will eventually have to be sold at large by the meter and his library will disappear because nobody in my family has the space for so many books.