They're not operating at a loss, so I'm not sure how they're using that line. I totally see your point (and agree) but there's an important distinction to make

They're not operating at a loss, so I'm not sure how they're using that line. I totally see your point (and agree) but there's an important distinction to make in Amazon's case, because there's a big difference between aggressively re-investing your profits into growth and aggressively burning other people's money to grow.