[thruflo]

Deis is, in a sense, a deployment framework that allows you to deploy your stack (basically a python app) in such a way that you can scale and configure it easily.

I deploy python apps (running behind gunicorn) on heroku and basically pay for the convenience of dealing with their client and ecosystem rather working with VM boxes directly. Deis provides similar abstractions without the per-process price tag.

If you don't have a problem manually managing / self rolling your app deployments, you don't need it.