If you are flipping through the reading to find a quote, then printed readings are hard to beat, unless you can search for a word with digital search. But speed reading RSVP presentation beats any kind of print reading by a mile, if you are aiming for comprehension. So, it is hard to say where the technology is going. Nobody has put in the work to really make reading on an iPad as smooth and fluid as print, in terms of rapid page flipping. But the potential is there. It is kind of laughable how the salesman will be saying, oh it has a fast processor, and then you open up a PDF and scroll a few pages fast and they start being blank instead of actually having text.