It's very, very cheap for textbooks. Students have to buy textbooks. There is lots of extra margin in textbooks that goes to supporting no longer necessary SAG. There are heaps of content that are at least as good as most textbooks. Note that the promo photo below shows pictures and graphs. The Kindle 2 was too small for pictures and graphs. You have to have pictures and graphs if you're going to do a textbook.
Since most students only look at a textbook a day or two before the exam, why pay $250 when the resale value is so low?
Amazon unveils the Kindle DX, its latest e-book reader -
from Fortune Magazine May. 6, 2009
Amazon hopes to convert readers of magazines and newspapers to its newest e-book reader, the Kindle DX."