Hmmm...
I know that Kits are sold over a longer period of time, ARF's just until the demand is met - wouldn't a manual or plan be a one time investment? You only have to design it once, as with the manual. If manuals are too long to produce, why not include basic instructions on the plan, like a Guillows kit?

I just really hate to see all of the kit manufacturers die, and hundreds of the exact same model. (although I must confess I picked up an Escape this week..)