I couldn't agree more, to be honest... but I run a bookstore, and have dealt in used/rare books for almost a decade, and the fact is that there are plenty of people out there who will pay top dollar for books that they will never so much as open.
If you want to read "The Grapes of Wrath" you can do that for a couple bucks at the local used bookstore, or for free at the library. However if you want to own a signed, first edition copy in good shape, it's gonna set you back roughly $25K, even though the beat up, used, paperback reprint and the signed first edition in fine condition say the same damn thing inside.
As a reader, I feel a book's true value is in what lies within. As a bookseller, things are a little different...