Then there's a better way
You are still missing my point. I am not saying that this should be used for every class. However, I have a course that is only taken by non-majors. Their option this semester is to buy the textbook for $100, buy a used copy for around $80, or buy the electronic version for $41.30. These students have no reason to keep the book after the semester so this works out great for them.
The majors that take my other courses will likely want to keep the textbook so they should buy a hard copy....
Forgive me, but professors who publish are somewhat vested. Give me the option of purchasing...at fair market value...and I'm game. However, we need to consider the savings publishers will benefit from such as not having inventory, printing and the associated costs, and shipping. Presumably there will be considerable savings in labor as well if the warehouses are smaller or gone.
Ultimately my point is this. While electronic publishing is a great idea it makes wholesale changes to the game. And while I'm not opposed to change, I am opposed to losing options. Just because the word is changed from purchase to subscribe doesn't make it right.
We are headed toward a new publishing world and probably for the better. I would hate to see it get out of control and the public lose out because there is a new way to "protect" or profit from limited use of intellectual property called books. They are, after all, the way we disseminate information, thoughts, and ideas.
There is a much bigger picture here and it is not being given an open forum. The right to own a book could be lost without a fair and open discussion.
We are probably headed toward the copyright morass photographers and purchasers of photography are in. Who owns what, at what price, and for what purpose. That issue requires far more space and time than I care to take but I didn't like those terms when I was a buyer and I don't like them now.