graeme_p - 4:26 am on Nov 23, 2012 (gmt 0)
The print on paperbooks does not need to be as large as it is MUCH higher quality than an LCD, or even e-paper.
You can enlarge the print on a paper books (magnifying glasses or large print editions) and people do.
In spite of that, yes, being able to zoom in and out is an advantage of ebooks. So is being able to change colours.