I suppose 20€ is a great price for Modern Warfare 2.
Also, I just got more keys. Keys for Unreal Tournament 3 for 11,90€, Mafia 2 for 22.50€, Modern Warfare 1 for 16€ and at last World at War for 16,90€. Unreal Tournament 3 and Mafia 2 are activatable on steam...