The USAF currently plans to buy 1,500. After cost overruns and explosion of maintenance hours per flight hour, they will take final delivery of five, each costing $5 billion.
Of the planned 1500, only three will be built: one combat ready, one in the shop, and one for parts. The day before the last one is rolls off the line, some democrat will add an amendment forbidding export; the day after that the plant will be shuttered and the tools broken up and melted. The media will report a total waste of money by Republicans since negotiations are so much cheaper ... as is surrender.