People keep repeating the "rare books" without providing any evidence that they are rare. Anyone who has collected books knows there are massive volumes of old books that can be bought by the pound.

I feel they are thinking first printing of some mega classic or hand drawn book from antiquity. I am thinking of some generic romance or thriller from no name author bought at airport... Or some generic book on say birds or animals... Stuff that they would not take if given a full box for free.

Any named book I have seen in the coverage of this are cheap crap books, that are available somewhere in the word from a public library. Its literal trash.