An even easier fit would be comic books. They already let you steam libraries of photos. I have never used that feature, but I would definitely stream some comics.
Also, they could handle audiobooks since they already stream music.
Instead, they want to sell me on streaming services when I started using Plex because I pirate my media.
I do see one issue with books that other media doesn't have. That is the ability to interact. When I use my e-reader, I like features like highlighting, taking notes, dictionaries, and other features that are more complicated that just streaming rendered images from a book.
Also, they could handle audiobooks since they already stream music.
Instead, they want to sell me on streaming services when I started using Plex because I pirate my media.
I do see one issue with books that other media doesn't have. That is the ability to interact. When I use my e-reader, I like features like highlighting, taking notes, dictionaries, and other features that are more complicated that just streaming rendered images from a book.