Hmmm... I'm just writing my web app for fun, so I was hoping not to incur any costs.
I work in a big enterprise environment where we have infrastructure that has message brokers for doing asynchronous processing for long running tasks, so I just wanted to see if it was possible on Dreamhost. Also this can be used for notify a calling app, that an asynchronous process has been completed.
All I really wanted was an eloquent way to execute asynchronous tasks in the background from python. I know I could use the Thread class in the python threading module to do this, but this tends to be hard to manage and maintain.