Ramen,
Nicely done! I'd like to point out 2 things:
- Your Axiom 1 and Lemma 1 do not have to be mutually exclusive. It is possible to simultaneously maximize profits and limit copyright infringement.
- In many cases, you are skipping options for someone who wants an e-book. For instance, on your Case B.2.2.2, you suggest that if a legal e-book is available, yet the book is DRM'd and uncrackable, you are left with no choice but to buy the illegal e-book. In fact, there is another choice: Not to buy. No one has to buy an illegal product. And another option is to bite the bullet and buy the printed book (and scan it if you really want the e-book version).