I much prefer the thoughtful posts prior to yours that helped me understand the limitation of current e-book technology such as formatting problems and other limitations, such as expiration of access to the electronic textbook. You chose to call me a moron. That really doesn't advance the discussion. As far as "19-century technology," I am talking about the modern idea of mass-produced textbooks for use in schools, with machine-made bindings, pages of paper, not velum or papyrus, along with layouts, graphics, tables of contents, indices, that we would recognize. I'm not talking about Gutenberg's Bible.
If you're such an expert on the textbook publishing business, please enlighten us with your gift of knowledge. I do know this: textbooks as currently conceived are an anachronism and will be largely supplanted by electronic media in some form in the next 50 years. Anachronism. That's a big word. You might want to look it up. Unless you work for a big publishing house, in which case you don't want to know what that means, because you have a vested interest in ass-raping a few more generations of college students. Amazon may have it's disadvantages, but watching it eat the lunch of self-serving dicks like you is quite satisfying.