Yes. Especially if you have a good tool that you pair with 'paid for' consulting. Consider RedHat or Canonical (among others).
If you or someone created something that was basically Heroku in a box that could then be hosted anywhere. I would be interested.
I want to build apps, not worry about hosting and servers.
Did you try http://www.openshift.org? The self-hosted version is basically what you described, at least for the JVM languages.
I have tried it, but just don't hold up as well as Heroku. I still use and love Heroku, but would be nice to have a similar option I could host anywhere on my terms.
Cloud Foundry. It runs on AWS, vSphere and OpenStack. Apache 2 license, IP belongs to an independent foundation, not a single vendor.
So you seem to actually worry about hosting and servers, despite you saying you do not ;)