Everyone can be a publisher
It just got easier to self-publish thanks to Cafe Press book publishing. Setting it up costs nothing. You provide the PDF. They print and ship it when someone orders. By my calculations, a 28-page comic would cost $5.26 (US) to print. A 200-page paperback would cost $13.00. The cost per book is much higher than with large print runs, but the zero-upfront cost is revolutionary.