Katherine Heigl leaves Grey's for good! Who cares?

Katherine Heigl has announced that she's leaving Grey's Anatomy for good and the world responded with a resounding "Who cares". The show, which is on ABC, hasn't been garnering the attention it once did and neither has Katherine. Her real hit was the sex comedy Knocked Up was actually the hard work of Jud Apatow and Seth Rogen. Heigl needs another hit or her already fading star will go out....