So what is so special about AWS in this regard? I've worked on state contracts with IBM and Northrop Grumman to provide data center services which includes eve

So what is so special about AWS in this regard? I've worked on state contracts with IBM and Northrop Grumman to provide data center services which includes everything from VMs to fully-managed Windows AD/Exchange environments. This has been an ongoing thing since at least the mid-90s and if it wasn't going to be Amazon it would have been someone else. Ask yourself why Enterprise isn't in the cloud yet. There are significant reasons.