Do test scores really matter?

In the article on the fischbowl titled "How much do you value test scores?" the poster explores who finds them valuable and why. Living in Colorado, every year we need to take the csap to evaluate our learnings,But should schools be judged on their test scores? Do you think that people should make decisions about were their kids go to school only on test scores?Would it make you think less of a teacher if her students had lower test scores?