A lot of people forget that sometimes the packaging of a text is just as important as the text itself. This article talks about a possibility that because eReaders make texts so much easier to read, that the unconscious parts of our brains assumes the text is less important as it took less work to read.
An interesting position to take!
E-readers 'too easy' to read - Telegraph
I wonder if there are any studies on the attractiveness or beauty of a text and its comprehension and perceived difficulty of reading are related. It would be a fascinating thing to research!