Shared responsibility and cost
Cost is a critical factor in making architectural decisions, and getting it correct is important to ensure long-term success in operations. It is easy to get carried away with superficial information and make uninformed decisions that can eventually prove to be expensive in the long run.
Many users do not see the benefits fully managed services bring to the table before making decisions. While fully managed services may initially appear more expensive than self-managed options, organizations often find that the total cost of ownership (TCO) is lower in several situations. For example, simply going by the sticker price for a service such as Amazon Aurora can lead to one thinking that it is less expensive to operate a database by themselves. To understand the full picture of the cost, you have to consider several factors.
The following section covers a list of areas where fully managed services offer significant advantages over self-managed options...