To Tex: The A-wing isn't more expensive to build, it just takes more man hours per equivilant mission time to maintain. This makes it expensive in the size and experience of the ground crew you have to use to keep them at peak efficiency. The X-wing and especially the Y-wing are comparitively easy to maintain and can be quickily fixed with any spare part that'll do most of the time. Anyways, arn't the A-wings weapons set to 3 lasers as their default instead of 2? I figured that was why the AI kept building them.