As of September 2016, you can buy a convertible reservation that allows you to move a reserved instance to a different AZ within a region. Your greater point st

As of September 2016, you can buy a convertible reservation that allows you to move a reserved instance to a different AZ within a region. Your greater point still stands but I just wanted to correct one piece of it. Source: https://aws.amazon.com/blogs/aws/ec2-reserved-instance-update-convertible-ris-and-regional-benefit/ https://aws.amazon.com/blogs/aws/ec2-reserved-instance-updat...