Greenline (Pennsylvania)
RDCs
### RDCs

[250px\|thumb\|right\|Refurbished RDC unit currently operating on [Cape May Seashore Lines](/wiki/Cape_May_Seashore_Lines "Cape May Seashore Lines") in [Cape May, New Jersey](/wiki/Cape_May%2C_New_Jersey "Cape May, New Jersey")](/wiki/Image:Budd_RDC.png "Budd RDC.png")
Another less expensive option was refurbished [Budd Rail Diesel Cars](/wiki/Budd_Rail_Diesel_Car "Budd Rail Diesel Car"), which last carried passengers through Phoenixville in July 1981 when [SEPTA](/wiki/SEPTA_diesel_service "SEPTA diesel service") terminated all diesel trains between [Pottsville](/wiki/Pottsville%2C_Pennsylvania "Pottsville, Pennsylvania") and [Philadelphia](/wiki/Philadelphia "Philadelphia").


How do refurbishing and operating old rail cars compare to building new ones?