Interesting point in the SAR on cost per flight hour...
2011 - SAR reports CPFH of $32K/hr vs $22k for mostly->20-year-old F-16s, Lockmart goes ballistic, says auditors incapable of locating own fundaments without both hands, a flashlight and a search warrant &c, says cost is F-16 + 12 per cent, tops.
2014 - CPFH still $32k, based on operational experience.
By the way, that's the A model, without added 20 MW driveshaft and clutch and all the other STOVL paraphernalia.