Maybe you mis-interpreted what I said.
In game, (not on the website), all ships that are in flight-ready status, are available to spawn in crusader. It's not a sale, they are just allowing us to test fly the flyable ones.
In case you were not aware, CIG as made every ship in "flyable" status available to all backers. Get out there and TEST fly any prospects you might have been considering!
Im thinking it has more to do with the fact it is basically a VIN for a starship, that being the Javelin class, which was the derelict home base for the sand nomads. Maybe they are hinting that the Javelin is further along than we know.