To those who think Sarah should go to Worlds:
She had two seasons of injuries behind her, hips and knees constantly hurting. The only reason she didn't retire before was that Euros were in Switzerland this year. She decided she was fit enough to start only two weeks before the competition.
I think she clearly deserved to win (and I am thrilled about it) but she also was lucky that the others didn't skate clean. So my opinion is, she is right to retire. She should cure her injuries and then make us happy by skating in a lot of shows!