I'm currently in Argentina with the British Council, and have given a number of presentations to readers, students and professionals on digital publishing. Whilst researching those presentations I came across this great quote from Robert Darnton, librarian at Harvard University, which is worth reflecting on (the full article is an essential read as well).
"In 10, 20, or 50 years, the information environment will be overwhelmingly digital, but the prevalence of electronic communication does not mean that printed material will cease to be important. Research in the relatively new discipline of book history has demonstrated that new modes of communication do not displace old ones, at least not in the short run. Manuscript publishing actually expanded after Gutenberg and continued to thrive for the next three centuries. Radio did not destroy the newspaper; television did not kill radio; and the Internet did not make TV extinct. In each case, the information environment became richer and more complex. That is what we are experiencing in this crucial phase of transition to a dominantly digital ecology."
http://chronicle.com/article/5-Myths-About-the-Information/127105