Depends on the public cloud probider, but the leading providers are actively building their own buildings for expansion purposes. For example MSFT investing $1

Depends on the public cloud probider, but the leading providers are actively building their own buildings for expansion purposes. For example MSFT investing $15B in its datacenter infrastructure. https://azure.microsoft.com/en-us/overview/datacenters/ https://azure.microsoft.com/en-us/overview/datacenters/. GOOG naturally don't need to colo anything, they have their own https://www.google.com/about/datacenters/inside/ https://www.google.com/about/datacenters/inside/. This article shows an analysis of DC vs. Public/Private Cloud IT Infrastructure: http://www.datacenterknowledge.com/archives/2016/07/06/cloud-providers-will-spend-23b-on-data-center-hardware-in-2016-report/ http://www.datacenterknowledge.com/archives/2016/07/06/cloud...