xD fair

Even if you don’t break the DRM, having the file is a guarantee that they con not modify the version of the book you payed for, or remove it from your library (both things had happened in the past).

A way to address that is to require that if the company does not provide software updates, it must release the source code and tooling to it’s customers under cc-0 license. For games that depends on server-side services to work, that should be provided as well.

But under capitalism, that will be an uphill battle.