Amazon, Google and Microsoft have fiercely battled one another to be the cloud storage provider of choice for enterprises. The competition has forced the three tech behemoths to dramatically reduce prices, most notably Google's latest 10% reduction, which followed the company's previously announced 68% reduction. Research firm IDC recently warned that these price cuts could drive smaller vendors out of business. But Microsoft's (and to a lesser extent Google and Amazon's) immediate and impressive responses to customer demand are really the driving force behind the near-monopolization of the enterprise cloud storage arena. The price reductions could ultimately hurt all three vendors, especially as margins crumble away, but because Microsoft has allowed innovation and not price to dictate its cloud mission, it should ultimately remain among the enterprise cloud leaders when the dust settles. Azure as it standsMicrosoft is currently the most far-reaching of the three services, with Azure to be made available in 19 regions by the end of the year (six times more than Google and twice Amazon's regions), and more than $4.5 billion invested in data-centers (also six times more than Google and double Amazon's investments). Azure registers 10,000 new customers each week. The service hosts 1.2 million SQL databases and more than 30 trillion objects (a huge coup for CEO Satya Nadella who has staked the Internet of Things as one of his main focuses at Microsoft).