TCG, the operating numbers are probably a lot better than I floated as worst case above. They charged the installation and setup engineering fees for each and every core swap. I see the installation as a very minute share of the real pie for the salesmen, much like printers make the money by selling ink. If you can lock PG&E into a 20 year service contract for 1,000 or more reactors, you could price the lot however you wanted in order to get the real prize.