Is my data purely ephemeral? Sometimes, yes: anonymous connections yield a computed result that is returned to the client. Where data needs to be preserved, that’s where a database or cloud storage comes in. We’ve moved away from hosting dedicated sql servers or storage devices for the same reasons as outlined above. These are services that are not pinned to particular physical instances. My data may be in one of a dozen physical locations - I really don’t care where so long as each and every one has a high bandwidth connection. The biggest resistance we’ve met is from infrastructure guys, who get moody when they find out they’re no longer needed.