The SR-71 is retired and has been for some time while the F-14 will be gone early next year.
THey keep mothballing and unmothballing the SR-71.
As a plane, it continues to be unsurpassed. But the missions can be done through other, cheaper technologies.
Soon all the planes I listed will be gone, starting with the F-14.
But if another hot conflict broke out tomorrow, the F-14 would be there and succeed.
My point is about the staying power of the designs of yore.