That's the thinking behind this much-discussed op-ed on the value of F-22:
There are, of course, two wars going on, and the F-22 has yet to fly a single sortie over the skies of Iraq or Afghanistan. Nor has the Air Force announced any intention of sending the F-22 to either theater. The Air Force is quite right to keep the F-22 as far as possible from either conflict. The airplane is irrelevant to both, and were it to appear in those skies, it almost certainly would set U.S. and allied forces back. Not only would it impose an unwanted burden on the already overstretched support forces in the region, but its primary mission -- shooting down enemy aircraft -- has no meaning in 21st-century warfare.
Bill Sweetman's response is priceless:
I'm sure you'd have found people saying much the same thing about the 20th century, in 1908. "I say, Carruthers, some dashed American chappies think they've invented a fwying machine! Like to see that go up against our cavalwy! Haw! Haw!"