In the following video, Motley Fool consumer-goods analyst Blake Bos discusses Amazon.com's (AMZN -2.56%) Prime service and points out how the streaming component of this business could spell big competitive trouble for Netflix (NFLX -9.09%). He discusses why Amazon's stickier ecosystem means its members spend much more on the site than non-members do, which gives it the ability to compete on a cost level that the competition just can't match.