The digital editions are restricted due to IP, so you can't have an infinitely copyable version for reference at home to solve the issue of children being destructive sometimes. So you end up with the worst of both worlds.
We could theoretically teach kids to convert cubits to feet and give them a translated version of the same ancient egyptian geometry textbooks used to educate the architects of the pyramids. Triangles aren't new. Why has there not been an opensource/creative commons math textbook made available to all schools with a issues board for crowd sourcing correctness?
This could be done with discrete periods of history, sciences, math, etc. We really don't need the McGraw Hill 2026 Florida Patriot's edition of the 18th century American history textbook.
I don't think it's the students who are signing textbook deals.