It's not only amazon that does this with loss leader pricing, it its also my local grocery store with milk and bread. For me what gives me the impression amazo

It's not only amazon that does this with loss leader pricing, it its also my local grocery store with milk and bread. For me what gives me the impression amazon has the lowest prices are their nearly nonexistent profits. Whatever's up may not the the cheapest but it's always difficult to find something cheaper elsewhere, even if it does exist.