because this setup doesn't require power, and it skips all those crating stages, why go to the supermarket when you can get it straight from the proverbial cow. Which btw, if I find a milk page I am totally making a milk ocean world and calling myself the Dairy God.
Well, technically you need some ink, craft some stuff and explore a TON of ages until you find the precise pages you need, so.. there is even more infrastructure in this than in a simple mfr system