@wackJackle @adapalmer I don't understand the economics. If I print 300 books for the cost of one copy of the book, and I sell seven copies, doesn't that mean I've made a big profit? Even if the 293 remaining copies just sit there? Or were manuscript copies by scribes sold at a big loss?
And https://en.wikipedia.org/wiki/Gutenberg_Bible says the full print run of 158 or 180 copies seems to have sold out immediately, including sales outside modern Germany, so how did poor distribution result in bankruptcy?