How big could Amazon.com, Inc. (NASDAQ:AMZN) be in Australia? There have been recent media reports that the U.S. online giant will hit our shores next year. The company, or at least an unnamed executive, has stated an intention to “destroy” Australian retail. And why not? Australian retail margins are among the largest in the world. But should retailers be shaking in their boots? Will Amazon march into the country like the Roman infantry, taking whatever market share they want? To me, this reads more like the blue sky case. So what does a more realistic scenario look like?