Love this change. Even as a casual player it's frustrating to buy a book and not be able to read it, especially if it was expensive. In all honesty though, if most of the site was converted/worked, I'd be fine with TNT keeping this mechanic or adding it back in.
They should make it so our pets have preferences to books (Drama, Romance, Comedy, Mystery Novel, ect.) and anything outside their preference would be deemed boring. That way, we'd actually know prior to buying a book and it keeps the mechanic added.