For the partner economics, it is you get to offer a complete solution to the customer. Cloud is hybrid and you need a strategy and approach that enables you to deliver across the full continuum. Partners can get a couple of points reselling Amazon, the same way you get a couple of points reselling on Amazon.com, but that does not a long-term profitable business make.
The reality is cloud is a way of delivering IT that is self-service, multitenancy, and outcome-based. Customers want that not just in a public cloud context, they want it inside the firewall as well as on-premise.