You need to realize that we aren't designing a plane for our current enemies and their armed forces, it's for our future enemies and their future armed forces. Currently we don't have another country or group that opposes us that can compete, but who's to say that in the next 20 years that won't change? Each generation of these aircraft stay in service for 20, 30, or even 40 years. While our current crop of fighters looks ok against what the rest of the world has right now they will be left behind as time goes on. China is developing their own fleet of jets, while there is a learning curve the Chinese aren't stupid. Sooner or later they will produce something worth paying attention to. Some of the jets coming out of Russia right now can be quite dangerous in the hands of a competent pilot, their next generation will be even worse. With China and Russia's history of working with countries that can be hostile towards us it's reasonable to believe that we may face these planes in combat sometime in the next few decades.
To maintain that advantage we currently enjoy we'll need a new fighter program every decade or two to stay one step ahead.
I know...that's my point.
why are we buying 3 decades in advance now, against enemies that will still be 3 decades behind todays tech...20 years from now?
our only real military threat--one which we will not fight--is China. Their nukes--logistics, tactical, and strike capability, remains, TODAY, at early 80s tactical capability.
basically, if a serious nuke war opened up tonight, against our biggest threat, we would effectively be able to neutralize their biggest retaliatory threat--tactical nukes--within 3 hours. They smioply do not have the capability to aim, and DEFEND their nukes. it's impossible.
...but we aren't even fighting these guys. We won't be fighting these guys. We are now fighting, and will only be fighting--desert farmers. that is it.
the only nation that you can strategically plan for outside of our current enemies is....the Alien invasion. that is the only other military tech, in this world, that could have a chance of surpassing yesterdays tech against us, 2 decades from now.
seriously.
it is, fucking ridiculous.