I’d respectfully disagree with Mark on the issue of screen quality. It is better than before, but still isn’t as close to paper, in my opinion, as Mark apparently thinks—either E Ink or LCDs. Consider the E Ink contrast issue. Still, I believe Mark’s analysis as a whole is right on target. Useful ammo for e-book advocates!
Some of the other factors Mark mentions: “Proliferation of multiple-high-quality reading devices,” “Oprah Winfrey,” “Early adopters become new evangelists” and “Greater content selection.”
Your own thoughts on the “Why”?