Photo printing is the latest addition to Amazon's slate of services and that's not great news for the likes of Shutterfly. Amazon Prints outputs snapshots for as little as 9 cents each and offers photo books starting at $20. What's more, options like post cards and calendars will soon be added, too. The online retailer debuted Prime Photos in 2014, giving subscribers unlimited photo storage as part of their $99 annual fee. It also offers a standalone storage option for $60 a year. With Amazon Prints, the company has a way to make money off of the photos it's storing for customers.