What Mayor Rawlings-Blake is proposing is quite different. For starters, it amounts to swapping one city-owned asset for which there is a viable private market, parking garages, for another asset for which the private sector is not well suited, recreation centers. (The Rawlings-Blake administration, during recession-induced rounds of budget cutting, touted privatization as an answer for the city's aging recreation facilities as well, but the feasibility of such a scheme has proved limited.) The city envisions a deal that would net as much as $60 million in profit and would retire the $24 million in debt owed on those four facilities, which would itself free up money for maintenance on other garages or construction of new parking in other neighborhoods. As for the fact that the city would be giving up revenue-producing assets, the finance department estimates the loss would net out to about $728,000 a year after factoring in reduced maintenance costs and the return of the garages to the property tax rolls.