The cookie cutter story of the 'chosen one' lost its impact years, if not generations ago.
Yet in all the games you mentioned, the player is in one way or the other "the chosen one", or at least someone special. Try to come up with an interesting story where the main character is just your average guy doing nothing really. Maybe most stories or games *start out* like this, but this "boring" main character always evolves (into someone special) or discovers something special, etc.
I don't think that there would be much to tell about non-special people leading non-special lives where nothing special ever happens, let alone make a game about such utter and complete boredom <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
