When I went on my interviews, my interviewers were REALLY familiar with my ps and one of them asked about ten questions from it. I think that for schools who's secondary doesn't have questions or who's questions are really common like "why do you want to be a doctor" then, your ps might come into greater play. So, while schools do look at gpa, mcat, eca's, I think the ps is still very important. Remember, it's their greatest indication of you as a person. So, if you didn't get in this year, I would definitely look over your ps and re-evaluate and re-write it. I definitely wouldn't send in the same one. Even though you may have poured your heart and soul into that 1 page response, sometimes just one word can turn someone off. I hope this may have helped you and good luck next year.