Amazon bought a digital marketing agency in NYC a few years ago, they often make smalll buys that later are related to major offering they make a few years late

Amazon bought a digital marketing agency in NYC a few years ago, they often make smalll buys that later are related to major offering they make a few years later. I think the great tension for all of this will be, Amazon can sell almost anything itself so if they're selling you ad space it's value to them is going to be less than the price you paid. Amazon is pretty smart, thus I suspect it will often be a bad deal to buy Ads from them.