It's essentially a subscription, sometimes for a price, sometimes not. And it's more than just a Ubuntu distro, it's an Azure image that also contains code allo

It's essentially a subscription, sometimes for a price, sometimes not. And it's more than just a Ubuntu distro, it's an Azure image that also contains code allowing the distro to run in Azure's system. Much like an AMI at Amazon. Anyone can bypass the marketplace by creating their own machine images, it's not too difficult.