If you link deeper to the offerings for specific providers you get a bit more clarity. For example, Docker EE for AWS is $0.119 per node hour, or roughly $80/month per node.
I have to assume some really deep discounts must be available, because although I can see paying $80 per "node" in a small shop, when you start to scale this doesn't make any sense. If I had a shop with 50,000 servers in it that would be $48 million a year in docker fees. Sorry, no.
That is very typical of enterprise products. Large deployments always get discounts. Extremely large deployments will often request "all-you-can-eat" unlimited deployment for a flat fee.
https://store.docker.com/editions/enterprise/docker-ee-aws?t...