Sorry, but 'availability will be resolved' is rubbish, given history.
Expecting patience when that means 'significant percentage of a human lifespan' is also ridiculous. As in - many years. If reading has an older crowd, then a large number of them will literally die waiting at the speed of media.
It hasn't been resolved for music, tv, movies in a lot of cases, why would it be for books?
Except by the darknet of course, where the available collection is much larger, and open to all.