As is the case with On Premise Data Center Applications, post the deployment, we need to manage the Cloud Applications on regular basis. But there is one more compelling reason why we need Managed Services for the Cloud Data Center. The BIG advantage of Cloud is the elasticity and agility. With regular monitoring we can keep fine tuning the Cloud Infrastructure which will lead to greater cost savings due to increase in efficiencies.
The Adoption Pack Chart is given here for reference: