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They say she's the last manned fighter jet.
They're cool, and they fit well with the mission of a small deck carrier/LHA, which is why so many air forces and navies around the world want them. They are VERY expensive to buy and fly, though. The F-22's have very heavy maintenance loads and if you need two in the air, you should have four on the ground. I'm concerned that the F-35 will have the same metric.