Originally Posted by Prestidigitweeze
Portable gaming for the non-casual is an exception (so far) because serious gamers are consumers in massive numbers. In fact, I'd draw a parallel between serious gamers and serious readers and ask the question: Are there really enough people who care about sun glare and reading-specific ergonomics to justify major companies' long-term investment in e-ink. And even if so, are they likely to see it that way?
As the price of readers comes down, more families can afford to give them to (reasonably responsible) children. The number of those must be comparable to the number of adult "serious readers". And there should be enough public domain reading material of interest to not have to worry about the cost of e-books for a while.
Tablets may well eventually cost less than readers, but I think it will take a while.