Amazon.com (NASDAQ:AMZN) trumpets the fact that its Kindle tablets and e-readers are flying off its digital shelves. But the retailer's media content sales aren't showing the type of spike you'd expect from a vibrant and growing ecosystem pegged to these devices.

In the video below, Fool contributor Demitrios Kalogeropoulos discusses Amazon's latest media sales results. He argues that the company's digital content sales figures look much closer to Barnes & Noble's (NYSE:BKS) flagging numbers than to Apple's (NASDAQ:AAPL) and its surging media business. 

Fool contributor Demitrios Kalogeropoulos owns shares of Apple. The Motley Fool recommends and owns shares of Amazon.com and Apple. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.