Rigo is also already 34 and this tour was raced fast. Maybe this year is like the swan song if that generation: Rigo is no longer podium material, Porte fell totally off and even as a domestique was a big disappointment, Froome has been reduced to being the world's best paid TdF tourist by injuries, Nibali can no longer hang with the best and even though he is not that old, Quintana has dropped from being arguably the best climber in the world to a shell of his former self.
It is a bit sad, but it has to happen at some point.