I imagine people will have two questions for every Marionette method: 'What does Marionette do with this method by default?" and "When would I override this method?" This seems to be trying to answer the second question, but it doesn't answer the first well enough, I think. If this makes sense, it might be helpful for it to read something like:

> The value returned by this method is the ItemView class that is instantiated whenever new models are added to the collection. By default the method returns the value of `this.itemView`.

That second sentence isn't exactly the most accurate since it actually uses `getOption` so maybe it'd be best to link over to that method instead.