The POD industry in general feels like in today's world of online business, they hold all the cards and contributing 'artists' have zero leverage. They also have little real interest in quality and see no problem in getting enough images regardless of price, because so many people are thrilled to just make a 'sale' regardless of how much it brings them. Therefor they feel there's basically no limit to how low commissions can go, and 5% probably isn't the end of it.
All I can say is that none of those companies will every get anything from me, so they'd better be right about the limitless supply.
