At what point do RPG elements = RPG?

[Barozi]

d21lewis said:
Really. Because I have NO idea how Mass Effect 2 or Valkyria Chronicles fall into the category of RPG. If those games do, I have no idea how Borderlands does not.

But it does.

Just my personal feeling is that it's a FPS first and an RPG second. Quite the opposite of Fallout 3.