One significant advantage of AWS is that they have a very large, built-in retail customer with relatively demanding requirements. I&#x27;ve always been under the impression that Microsoft doesn&#x27;t really have a business that would lend itself to consuming its own services[0] and it&#x27;s unclear to me whether or not Google uses their stuff internally.<p>0 - as an anecdote, I recall their salesmen coming to sell my employer their caching solution around 2008. I asked the rep I&#x27;d Microsoft was using their caching product on any of Microsofts web properties and he replied that they were not.