The practical problem today is that cloud now has so much mindshare, justified or otherwise, that the ecosystem around private hosting is diminished. Finding good people with the required admin skills, good sources of equipment, even good software to run local versions of automation we take for granted in the cloud, can be harder than it used to be.

I won't be surprised if in a few years some huge tech firm we all thought had faded into obscurity enjoys a new lease of life by offering a set of locally hosted equivalents to popular cloud services that are also easy to administer and scale but come with a lot more predictability because they run on the customer's own infrastructure.