have you ever printed a webpage?
It worked fine. There where some minor issues around page breaks. But then again, most people don't use paper for reading anymore, so I'll happily accept these minor issues over the absolute inconsistent hell that is text-selection, searching and hyperlinks in most PDFs.
Reading long form content on a screen gives me awful eyestrain.
Plus I love the smell of a good book.
I hope that e-inc displays will mature. Paired with the UX of a modern I Pad this will replace printed stuff.