I, personally, think that
A) The US would NOT get better use out of big carpet bombers - in case you haven't noticed, most bombing strikes lately have been with maybe 10 bombs, tops, put in precision places.
B) Notice the A in F/A-22 - that says that it will be a multirole attack craft as well. It will be used probably in much the same way as the F-15E: a fast attack craft that can fight it's way in, bomb the target, and fight it's way out.
C) All developed countries should be improving technology, regardless of if they're going to war soon or not. If anything, it trickles into the civvie market.
D) The F/A-22 presents an enormous technological leap. You know Freespace 2 radar? Yea, it's that now. Dots are color-coded blue/red based on friend/foe, the radar automatically determines what TYPE of aircraft the enemy is flying, and depending on that, determines whether or not it should track it continuously; i.e. if the radar picks up a Su-33 and an Airbus A320, it's going to constantly track the Su-33 while leaving the Airbus mostly alone. It's just a massive improvement over everything; think of your favorite jet sim with the avionics set to "Easy".