Geez folks, Google is your friend. Check out "Digital Preservation, Planets" to find out that all the major libraries ARE digitizing everything they possibly can. They are also qualifying and choosing digital formats that CAN stand the test of time. If the formats change, the Planets committees will adapt and redo the work. This is not just "they should" but "they are."
There is nothing special about paper, it's just was was available at the time. Digital is the next logical progressive step in passing knowledge, reporting the news and reading entertainment. The only thing it has against it right now is that it really only about 20 year old technology. Give it another 100 years, and digital storage will be just as accepted as paper ever was. Paper's time has come and gone. "it's the message, not the media, that is important".