If Sarah were a lesser person, I'd say yes, but she's the type of leader a country only sees once in a century. We need her in the White House.
Personally, I’d love to see her at the head of the RNC and clean up that RINO-infested organization. While I agree she would be kick-ass at the presidency, I believe she would have greater influence on actively defining conservatism as a dominating faction on whom the RNC will support in candidacies at all levels.