Kindle provides access to magazines and newspapers.
Anyway, as I said, it depends on how you use the material. If you like to loan out and show off your collection, then stick with physical books. But don't assume your wants apply to everyone. I enjoy the convenience of having a new book instantly, of never having to bookmark my last location, being up to look up words instantly, not having to carry around weighty books on trips, not having to worry about needing a new bookcase or where to place said bookcase, being able to search the text of the book, being able to instantly jump to specific locations in the book, etc...
There's plenty of upside to ebooks. And those upsides were enough for me to switch. So I'm glad devices like the Kindle exist.