I'm trying to learn Backbone, I really am. But there's so many tutorials suggesting everything that I don't have a clue how I should structure a project and what to think about as a codebase grows.
I was in a similar position to you a little while back. I found the annotated source of the TODO app on DocumentCloud a good start. I then found it was worth spending the money on Recipes with Backbone by Nick Gauthier & Chris Strom.