Bootstrapping problem
The reason why these ereaders are going to have problems taking off is due to bootstrapping.
The first thing I did when I bought my first mp3 player was rip some mp3s from CDs that I had bought in the past and loaded them onto my new mp3 player so on day 1 of being an mp3 player owner I had 1000s of mp3s to listen to. But I cannot do this on a ereader, I cannot load up my existing library onto it (without paying for it again that is). So I will not buy an ereader.
Biting the hand that feeds IT
