Amazon AWS. The ability to stop/start?

EBS instances can be stopped. non-EBS only terminate.
\r
pruflink
\rsupport.rightscale.com/06-FAQs/FAQ_0149_-_What%27s_the_difference_between_Terminating_and_Stopping_an_EC2_Instance
\r
\r

The ability to stop a running instance is only supported by instances that were launched with an EBS-based AMI.
\r

Most likely the fact that a stop does the same thing as shutting down a computer from the OS menu (that is the procedure, when I stop all services, etc.) and terminate — it's like "just cutting out food".
\r
That is, if the OS is not loaded, nedozagruzheny, fails and some other reason (e.g., not supported) — stop not working.