>On Sept 28/06, the US DSCA (Defense Security Cooperation Agency) notified Congress of a possible Foreign Military Sale to Turkey of 30 more F-16C Block 50 aircraft external link, as well as associated equipment and services. The total value, if all options are exercised, could be as high as $2.9 billion.

Thus, the money includes any of spares, ground equipment, special tooling, weapons, and training. I can tell you from my experience on the F-22A program that these items can add significant cost to an overall buy, and I would not be surprised if 1/3 or more of that price was the extras rather than the airplanes.