Sorry to be one of those people but if our civilization collapses, we won't go back to the stone age. An high-orbit nuclear EMP isn't as effective as people who lobby for missile defense would have you think. EMP doesn't wipe out people's memory, we'll still know what a computer and electricity is. All tech won't be destroyed and it won't wipe out all physical storage devices. CD R and CD RW will be okay. The way they store data protects them. Plus we have a lot of unintentional Faraday cages. So sleep well knowing we'll be back up and running within a year or two.
On the topic at hand, books smell too good. There's something special about sitting down under a warm light source and cracking open a book that can't be replaced. The crisp pages, the fine paper, the visual feedback of progress as read pages stack up and the satisfaction of it. You have to set aside time and make a place to read a book. It's not something you can do anywhere. Which makes it more unique. Plus setting foot in a library is pretty fun. Searching for that right book using your wits and Mr Decimal.
If it's going to be digital, why read it all? Why not just digitize books and turn them all into audio files? It's like having a fireplace screensaver, it seems pointless. You can store 10,000 books but you can't really read them all. It's just catering to the "omg gimme gimme gimme" ipod people who need an app for that and that and that too.
"Astronomy offers an aesthetic indulgence not duplicated in any other field. This is not an academic or hypothetical attraction and should require no apologies, for the beauty to be found in the skies has been universally appreciated for unrecorded centuries."