Many users and companies, across industries, see AWS as a cloud strategy that's used to gain strong competencies, data center expansion, or disaster recovery options. It gives companies the best of both IT worlds, and will improve performance. You should be prepared for traffic spikes, and should increase your company agility by extending or moving workloads to AWS.
There are two common models for deployment: all in the cloud, or hybrid deployment. AWS provides all of the necessary components to enable customers to improve the efficiency of their operations, while keeping local infrastructure and internal systems that can burst to the cloud.