Feature-wise, you're partially right. But using a modern framework (I prefer Ember) allows a team--large or small--to build advanced apps without losing their

Feature-wise, you're partially right. But using a modern framework (I prefer Ember) allows a team--large or small--to build advanced apps without losing their sanity. UI-based routing, declarative data-binding, and a REST abstraction layer save you a lot of hair pulling.