These fees must, over the long run, recover all the direct and indirect costs of providing the services, including imputed costs that would have been incurred and imputed profits that would have been earned if the services had been provided by a private firm.
And for these types of services, we will simply be following the dictates of a marketplace in which legislative and technological change is driving consolidation. More fundamentally, to protect our independence within the government - the arms-length relationship that provides monetary policy making with a degree of insulation from shortrun political pressures - Congress has given us autonomy over our budget.