Right, no one wants to work on a 10k line view.py file. However, if you put everything into its own app, like I did, then you run into circular dependencies as your project gets closer to feature complete. So, the answer is somewhere in the middle. At the moment, I have about 20 apps, with 1 to 4 models per app, and 20% of all that is highly interdependent. I should have put the big, highly interdependent pieces in one app, and have the less connected pieces in separate, bare-bones crud-apps.