So I want to make posters for a certain niche and sell them on a web store. I'm trying to decide whether it would be better to invest in a plotter and do the printing myself or to submit my photos/designs to a larger poster company like allposters.com or something and have them deal with it while I just generate the sales. Ideally I'd have them printed in China but I don't have the initial capital needed to have multiple prints for customers to choose from. Does anyone have any suggestions/advice?