Why is it that the Navy never replaced the F-14 with a fighter with similar characteristics - speed, range, weapon range etc ?
I assume because we're preparing for different threats. The F-14 was designed for creating air superiority in direct confrontations with the Soviet Union. Now our likely opponents will concede that territory to us and respond with suicide bombs.
Who's to say what the geopolitical situation will be in 10, 20, 50 years? Aircraft flying now will see it...