Right. I can write a script to go from fresh installation to deploy in one command using Vagrant, Puppet, Chef, Ansible.
But the reason why so many people like PaaS such as Heroku and dotCloud is actually that there is /one/ recommended way to structure your app (at least, what to put in wsgi and so forth). It's about making it easy to go from code to package to deployment.
But the reason why so many people like PaaS such as Heroku and dotCloud is actually that there is /one/ recommended way to structure your app (at least, what to put in wsgi and so forth). It's about making it easy to go from code to package to deployment.