Is there a good rule of thumb as to what constitutes a "large number" of Views? I tend to assign Views to Models rather than Collections, partly because I hate

Is there a good rule of thumb as to what constitutes a "large number" of Views? I tend to assign Views to Models rather than Collections, partly because I hate storing Model ids as DOM attributes and extracting them in event handlers (as in the grandparent comment). I've gotten away with several hundred Views on a page before, but that doesn't feel quite right either.