Whilst I accept that stricken ships are just stripped out hulks that would be astronomically expensive to return to service in some form or another, in principle it seems such a waste to just throw them away. Common sense and a little forward planning would see them 'recycled' into some form of useful service after life in the navy, but common sense and politicians rarely appear in the same sentence...
Obi Wan I agree. But the bottom line is the cost. In 2005 the USN estimated it would cost about 2.5 years of re-fit and $2.5+ billion USD to completly re-fit the JFK. The USN then cancelled a paltry $347 million dollar re-fit of the aging ship.
Bottom line is the $$$$$$$$$$$$ it cost to re-fit and maintain these ships. Other US agencies do not have the "know how" ,money or personell to operate them.