My comment is being misread as my support for piracy; my comment isn't meant to discuss anything at all about piracy. It's instead intended to look at everything that's not piracy, and examining their costs, and why the industry chose the path they did.
Existing rulings are beginning to suggest that if the books can be obtained legally, a separate license is not required for training. So I'm naturally interested in legal ways folks training models would get a lot of books, and whether the publishing industry has even considered the value there.