Please show us the numbers to how the cloud makes sense? For specialized applications maybe but outsourcing to the cloud is almost never the right thing to do. Corporate it needs do not the cloud does not scale well. For instance, dropbox would cost 12k per year. For a 12k investment, I can have my own SAN and save those otherwise residual expenses.

Another example is cloud emaill. For the same price, I can have in house exchange, a san and vmware environment with cloud backup.