Think it through. Sarah Palin knows better than anyone that millions upon millions of Americans have already chosen her as their next president. She knew this over a year ago.
She's got far too much respect for the American people, and for our political process, to string the country along while she "makes up her mind." She knew over a year ago that she needed to decide quickly, and that if she couldn't commit, she'd have to come out early and say that.
The very fact that she's still being mum about her plans this late in the game should tell you what you need to know.
So she continues to string them along? That makes no sense.