Palin's move just may turn out to be brilliant. Her entire theme is not doing politics the usual way. Let's face the facts here for a few minutes, and think about this. She decided that she will not seek reelection in the state of Alaska for Governor. As soon as she publicly states this - and in this era of running 2+ years before the next election - she becomes a lame duck with a year and a half to go. Aside from this, whether or not she finishes out a term, she will be attacked as only being the single-term Governor of a relatively small state (administratively speaking, of course).
That attack will be there regardless. All of you folks who complain about Palin's experience, yet voted for Obama should really consider what you are saying for a few moments. I really hate to pop you upside the head with some reality here, but you folks voted in the relatively unimpressive Barack Obama who quite arguably had little legislative history to go on. Afterall, I do remember a Senator not serving out his full term, and campaigning during most of it as well...
Which brings me to the why. Sarah Palin is getting out of Alaska because she does not play politics as usual. She cannot stand it, and her approach has always been an unconventional one. Tradition has it that you serve out the term, even as you are campaigning elsewhere. In this case, she's brilliantly not doing the usual (and Obama-esque) method of putting the office on the back burner.
I believe as a further consideration, she had her family. They're dealing with lots of litigation amidst this public castigation. It's easy to see Liberals cannot stand her, so it only follows that they respond with what they consider to be "humor." I am sorry, but regardless of party affiliation, you don't joke about someone's daughter participating in what amounts to statutory rape. It's so darn funny how the left is so quick to rant about sexism, yet Sarah Palin received the most sexist treatment of any of the candidates I have seen. Others opt to make fun of her voice, because they don't like it. As a Southerner, I'll tell you that this avenue is simply low-class and exposes ones own ignorance about real life.
Sarah Palin may or may not get my vote come 2012, 2016, or 2020. However, I will give her serious consideration. The fact that she alone riles up those of the liberal persuasion so much says much about her. It brands her as a doer and not a talker or dreamer. She breaks the feminist mold.