Shameless plug: if you are using autoscaling and have stateless/12factor components, you would like to try spot instances but don't feel like spending time and

Shameless plug: if you are using autoscaling and have stateless/12factor components, you would like to try spot instances but don't feel like spending time and much effort with a migration to spot fleets, just give autospotting a try. It will continuously replace your group's on-demand instances with the best priced compatible(at least as big and identically configured) spot instance types, with minimal configuration changes performed by simply tagging the group. The group configuration is unchanged so it would keep launching on demand when scaling out or when replacing outbid spot instances. The tool is open source and available on github and can be set up in a few minutes: https://github.com/cristim/autospotting https://github.com/cristim/autospotting