Aguero: 40 mil € + 2*5* 10 mil € + bonuses = +150 mil€
Rossi: 35 mil € + 5*2*4 mil € = 75 mil €
75 mil € is enough money to build a 30.000 seater stadium. Incredible for the small difference between the players.
This is too much for any player not named Messi or Ronaldo and especially for Aguero who is not the game changer that players like Ibra, Tevez, Messi, Ronaldo, Rooney (etc.) are.