I agree otherwise except the crucial point: it is anything but cheap. I am the longest serving bitcoin publisher by far and I find myself in a position where I must ramp down, not increase retail (it’s not even a fiat/btc issue, it’s physical vs digital) sales. Not because I want to but becaise I must. Somehow you have an idea that printing, storing, picking, packing and shipping costs nothing and is trivial to set up. If that would the case, why is not everyone doing it? The only reason I got away with it for so many years is because i have over 100 titles in my library. Can’t even imagine how hard it is for smaller opetators. Luckily, ebooks and audiobooks are trivial to list and we have thise too. Sales? Even worse than paper books.