I'm sure there's a market for them, but, over the world, there are shapers, from big brand to garage shapers.
They all do there stinking best, to create the best board, for surfing, downwind, race or whatever.
Ask yourself, do they look the same, are they as flexi as a inflatable, rails fins etc.
So, there it is, there is no way, it would work as good.
Same as with girlfriends, the real ones compared to the inflatable ones, well..........you know

(They just told me offcourse)