The Kindle DX, on the other hand, has become indispensable to me for reading all kinds of technical books and pdfs. Along with the daily E-book deals from O'Rei

The Kindle DX, on the other hand, has become indispensable to me for reading all kinds of technical books and pdfs. Along with the daily E-book deals from O'Reilly it has almost completely eliminated the need to buy paper technical books. I think a good market for this is in areas with long, public transportation commutes. Those who take the car to work have fewer good use cases for e-readers.