It appears that this move might be in response to a potential federal indictment.  There is speculation that the Palin home was build as a favor for awarding a contract to build a sports complex in Wasilla.  It appears that the person she gave the no-bid contract to built her house for free...honesty, integrity, and good old conservative values at work.
Here is part of the blog report I read.
http://www.bradblog.com/?p=7280
		 
I just thank god every day that we have such glorious leadership coming out of both parties Reagan, HW Bush, Clinton, DUBYA, Obama and Palin.
No wonder people love Obama he hasn't had the time, or in Palin's case the talent, to horrify people as much as those other guys did.
I'm sorry but that list reads like a who's who of overspending, constitution shredding, corrupt, crony appointing, dissent suppressing megalomaniacs. It's just sad really. I love this country so much and I meet talented and bright people all the time but our system is far in the hands of the few (various elite in this country and outside it) that we will never see decent representation of what most Americans want: A government that stays out of our business and personal lives, provides a few critical services, a strong but not insane spending defense department, low taxes, some corporate regulation to prevent ecological disaster or human rights violations but not ridiculous over the top regulation either, and of course a strong adherence to our civil rights. Instead we get virtually the opposite across the board. Most people just want to live their lives and not be taxed and fee'd to death while having their privacy invaded. Government must protect citizens from encroachment on civil and human rights of the individual, whether that encroachment is by corporations, other domestic groups or foreign powers. Other then that Government should be small and virtually unnoticeable.
 If the government just took care of a few modest services and the protection of our rights the free market could take care of the rest. The problem today is that regulation of business is not primarily used to prevent abuse of civil rights, human rights or environmental destruction but rather regulation is used to help maintain the status quo of a few dominant big business in a sector crushing small and mid sized business with regulation by their politically connected allies. So more regulation isn't good necessarily, on the other hand no regulation would turn this country into a toxic wasteland nigh immediately with virtual or real slavery (see Kellog Brow and Root contracting illegal immigrants to rebuild after Katrina then not paying them and sicking INS on them). So what regulation needs to do is to make sure products are safe, and civil and human rights are met and the environment is protected enough that we can breathe the air, drink the water and not see salmon etc. Wiped out. It is perfectly possible to change our economy to one that is still incredibly productive but also reasonable towards people and the environment. Some regulation is necessary but not much. Some government is necessary but not much.
"The government that governs least, governs best."
A truism but one you can only take so far. No government of course leads to Anarchy which starts out ok but usually turns into a warlord situation quickly.
 Safety, Civil and human rights and reasonable environmental protection. The free market should take care of the rest. 
 The last thing is we at some point will have to figure out how to make a contracting economy work. We cannot expand forever and have infinite offspring. At some point we need to figure out some way of getting people to have less children. I plan on stopping at 2. We need more incentives for people, especially poor people, to have less children. Our current system rewards additional children (more food stamps, health care and tax breaks) which made sense 50 years ago when we wanted someone to pay for Social Security and soak up the inflation. The reality is we're pretty much over carrying capacity for humans on this planet. This is the 8,000lb elephant in the corner no one wants to talk about. We must talk about it honestly in society or else the extremists will take over the dialogue and that way Eugenics lies...
(Commence partisan posturing "But Clinton wasn't nearly as bad as Bush...or Reagan was an amazing president blah blah blah")
P.S. lets use the oil we have to make wind, tidal, geo-thermal and solar power generators. If we also redo our electric infrastructure with a more efficient one we can look at quite a bit of energy savings.