A multi-billion Dollar fighter... What fighter would that be?
Think of the entire spectrum, from concept to RnD, to trials and implementation, etc. The F22 and F35 are both multi-billion dollar aircraft, the most expensive ever even after adjusting for inflation, etc. Mind you, I'm not an opponent of the programs, I just like putting things in to perspective. NATO forces were able to, at least with most war models ever produced and that includes Soviets models, with far inferior numbers but far superior training, tactics, and equipment. Interesting stuff.