I'm not convinced it's overpriced for what it's capable of doing- it is a superb antiship fighter. I am convinced that it's price tag means it'll never get a chance to do it, because it'll be intercepted and shot down by superior numbers of enemy fighters.
That much is obvious, right? What then?
What do the ISA do when it becomes obvious that they don't have a white star as much as a white elephant on their hands? Persevere, and lose a lot of them?
Political solutions, like looking for lots of Narn allies with handy E- mines?
Operational solutions, like deploying them only in sufficient numbers to overwhelm opposition, or at least sufficient to force the enemy to concentrate on stopping them which is an achievement in itself?
Technical solutions; the Drazi, see above, have a heavy antiship fighter, rather good at it but hopeless in fighter-to-fighter, and a fast light interceptor to clear enemy interceptors and give it it's chance. One case where the ISA have something to learn from the purple and green crew.
So, basically, I was taking it as accepted that it has a problem. Given that it's not going to go away, how do you go about getting tactical value out of it?