E-Textbooks: Pros and Cons

In an article in today’s Inside Higher Ed, it was reported:
At UT-Austin’s campus book store this semester, for example, e-books were available for 198 courses representing an estimated enrollment of 15,531 students. About a month ago, when the numbers were calculated, only 55 were sold — or about 0.35 percent of all potential e-textbook buyers.
Wow!  [...]