(NASDAQ:AMZN) CEO Jeff Bezos says the company's selection of Prime-eligible products -- the ones that ship for free to subscribers -- has increased to 15 million items. In the video below, Fool contributor Demitrios Kalogeropoulos discusses what this could mean for Amazon's Prime subscriber growth, and for the company's overall retail prospects.

Fool contributor Demitrios Kalogeropoulos owns shares of Costco Wholesale. Erin Miller has no position in any stocks mentioned. The Motley Fool recommends and Costco Wholesale. The Motley Fool owns shares of and Costco Wholesale. 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.