If the content is consistent, it is all knowledge, and knowledge itself is valuable, so no one is more valuable. E-books and paper books are just carriers of knowledge, and what you learn from them is valuable.

In the case of inconsistent content, e-books represent a fast-food knowledge acquisition, which is convenient and fast, and the content will not be too deep; But for the paper books in the library, it will make you calm down and read carefully, and you may have more things in your heart; However, this is still the difference brought by the difference of media, and knowledge is still valuable;

From this point of view, this problem seems to be problematic or can't be called a problem. The knowledge in the book is very valuable. I think you should compare which way can make people learn more from books, which is related to everyone's acceptance, habits and hobbies.