Didn't log into my amazon account for year but just checked: First order in 1999 and last order in 2016. I can keep off it for many more years.
Over half of amazon's profit comes from retail revenue.
Internally, a lot of amazon retail revenue turns into AWS profit as amazon retail is AWS's biggest customer.
Besides, your individual purchase surely isn't costing them more money than you're spending on it?
>Amazon’s online store revenues have been decreasing and its results for the first quarter — $106 billion in revenue worldwide — were “roughly flat” as its U.S. market share growth in e-commerce and Prime “stalled after years of high growth,” according to the Journal. Its global e-commerce business reported a $300 million operating loss.
Also, did you search for my nickname and AWS? Interesting personality trait...
Good point about AWS though.