Well as any F-35 supporter will tell you the unit cost of a new aircraft is directly related to the number of aircraft purchased because of long lead pricing and the efficient production rate. The original F-22 program was for 750 aircraft. By 2006 that number had dropped to 381, and the final number is 187. It is interesting that the 2009 unit cost was $150 million.
(REF) You might want to compare that with the F-35 price.