No, you agree. That's what I said. She helped preserve the conservative base that might have been tempted to sit out. I'm skeptical how many would have actually stayed home, given the presense of Obama as the other candidate. But that was her value--solidifying the base that the GOP should have been able to count on anyway. And that just shows that the real loss was due to McCain. He needed Sarah to merely break even with the base.
Sarah was a huge factor.