You have to take in consideration that each page turn in the ereader desn't equate to a real page turn. Depending on the font size, a 500 page pBook can be 1500 or even more ebook page turns.
But I've also noticed that I've started reading more since I bought my Cybook. Maybe it's because now I carry it around and read in situations I wouldn't before. Also, reading with your favourite font size and type helps.
