There are two kind of issues here: one is the preservation of human information fully knowing that sparse books are hard to change/destroy, while digital information on centralized sources is terribly easy to change, and we all know the power of information, so the interests of some to temper it for a large variety of reasons; the other one is the need of a sustainable economics. In certain period of prosperity even low output activities might be tenable, in a deep crisis they tend to be untenable.