Although to me-and-you and to an extent SME's it may seem crazy to buy one over running it on-prem or at other companies to large organisations it makes perfect

Although to me-and-you and to an extent SME's it may seem crazy to buy one over running it on-prem or at other companies to large organisations it makes perfect sense and the cost is just a drop in the ocean compared to their normal AWS monthly bill. Lets not forget AWS will only invest time if there are customers who will actually use it. A few points from the top of my head: * Large enterprises won't pay the costs listed publicly, they will each have their own contract written up with AWS. * Contracts - it can take YEARS for new companies to be added to the approved vendors list. * Frameworks will already be in place for how resources are managed and accessed securely. * Enterprise support agreements will already be in place. * Physical security that is regularly audited