[redis_mlc]

> Because they're constantly reinvesting for even bigger economies of scale.

Not exactly.

To avoid paying taxes, any extra net income is reinvested. It's like a religion in senior management to avoid taxes. And to lobby for employee non-competes, too.

Also, margins on retail are not the same as pure tech companies, like Google or Microsoft. US grocery stores, like Safeway, have net income in the 1% of total revenue range, so if Amazon can make 10-15% on retail, that's impressive.