If you find yourself constantly reinventing the wheel when AWS offers a managed service that handles that for you, it might be time to switch to AWS. Some examples might be: writing a complicated postgres backup solution instead of using RDS Automated Backups, or running your own Kubernetes control plane instead of using EKS. But if you have an infrastructure that is easy for yourself to maintain, then spend your effort generating value elsewhere.

Depending on your current provider, there may be advantages moving your existing bare metal server to EC2. For example, what happens if the drive on your server fails? You'll probably need to write a backup script and write documentation on how to restore from it. If that happened to an EC2, AWS would just restart your instance on a new host and your EBS volume would come with it, and automated snapshots can be set up with a single click. Security groups are simpler to set up than configuring a Linux firewall. Lastly, EC2 has support for automated horizontal scaling with on-demand pricing and Spot instances. But none of these are a must-have, they are conveniences, and you pay a premium cost for it. Hetzner has servers with 64 GB memory for €37 per month, and a similarly-specced EC2 will easily be 10x that cost.