Book value doesn't necessarily have ANYTHING to do with market value, so the plane could have been sold at a "book loss". I would bet everything I own that 9 out of 10 reporters could not explain or likely even understand what I just said.
It wasn't just the capital cost but the enormous operating and maintenance costs of owning a jet aircraft Governor Palin eliminated. Getting rid of the jet saved millions of dollars in fuel and maintenance costs that would accumulate quickly over a fairly short period of time.
I forgot to mention that most jets require a crew of two pilots who also have to be on the state payroll, sitting around waiting for the governor to decide to take another flight.