Since the estate owns the property (subject only to the terms of Dahl's delegation) and you don't, how much more presumptuous could you be? It's easy for you to say the books can go out of print since you have nothing to lose. (Also, let's recognize that, in the 21st Century, "out of print" is a wholly meaningless anachronism.)
I take your last sentence as a statement of your opinion, which does not align with mine.