It sounds like it takes almost as much money to decommission one as to build one... and more trouble in many ways.

And so far, NO ONE has decided where to store spent fuel safely. The US has been dithering about this for 40 years! (They thought briefly of using underground salt mines in Kansas...just 35 miles from ME! Now they pretend they'll use Yucca Mountain....someday. In the meatime, spent fuel is stored onsite...just like in Japan.)