ORIGINAL: ptmac3
I don't see why they can't offer them as an ARF and a Kit. They have to make kits for the ARFs anyway, so just divert some of those "kits" and box them up. Is that too difficult or what?
Here is a post about "kitting" ARFs
http://www.rcuniverse.com/forum/fb.asp?m=4258004
Of course the Pica kits were already designed as kits at one time so dies, plans, instructions, etc do exist for the kits.
In reality, they most likely had to have everything redesigned to create the ARFs in a form that can be factory built.
So, to sell kits and ARFs they'd have to release two different products for each model they chose to do.