StarCraft II retains some units from the original game, although some of these units have been given new abilities. Due to story events from the previous game, some units have been phased out or replaced. For example, the conquest of the protoss homeworld of Aiur has prevented the creation of more dragoons - the transplanted forms of protoss warriors in exoskeletons - resulting in the remaining dragoons to be redesigned with different weaponry and a shield that absorbs heavy damage and renamed to "immortals".
Starcraft II! 1 game for the price of 3, step right up!
Seriously, this, the hiked-up price of Modern Warfare 2 and yet Bobby-whatever-his-name-is calls out Sony on their pricing? Do I need to mention the term hypocrisy or were you already thinking that?