What is the biggest problem with eBooks?

[cheap-textbooks]

I think the biggest problem with eBooks is the lack of availability. I looked at the top 1000 textbook as searched by students at my price comparison service (www.cheap-textbooks.com) and only 15% were available on the Amazon Kindle. The other ebook sellers were under 50% except for Coursesmart which had 82%.

The second issue that I see is the format. Will students be happy with simple PDF versions of a textbook or do they want all the interactivity that is available from some publishers. Personally I think cost will favor the PDF solution.

And the final issue is the price, they just are not that much cheaper.

What do you think?