A.'What a waste'What is Tommy referring to as a waste?Is it really a waste?Discuss.

This question is from The Fun They Had by Issac Asimov.

Tommy and Margie had found a book. They were amused to see that the book had the same words printed in it that never changed. Tommy thought it was such a waste compared to their screen which showed a change of words and text. He felt the book was a waste as it would need to be thrown away after use. In reality, books are not a waste: they can be referred to, browsed through and re-read. It is just that it was something new and unknown for the children.