something I DID think of, though...
Cost DOES derive from engineering and labor, no...?
So, the 1/48 VF-1 already has a transformation system that would be easily adaptable to the VF-0. Regardless of the size difference, perhaps the need to do less R&D would make a small difference... It's doubtful, but possible.
Edit: I DO like 1.48s a hell of a lot, not so much for size, but due to that scale being easy to find among other model aircraft.... I've always wanted to buy models of the real world valk countparts, and have 'em fly point to my Macross goodness...