It's an incredible deal at $7K. Pentax is at the verge of having a more complete MFD system, especially with the three new lenses. I guess at this point many of the others would have launched an aggressive advertising campain. Perhaps Pentax is waiting for the 645Dii or they want to introduce a couple of new zoom lenses together with the system.
The Pentax Gallery is a wonderful online way to promote the brand. The system would get more of a response if there'd be a few more new lenses. The three lenses I'd like to see are the wide angle zoom, a shift lens, and a fast portrait lens. A 180mm or 200mm macro would be a dream, but I realize it's an unusual request. They could learn a few lessons from Leica in terms of marketing as Leica also started with a fairly small system. Pentax certainly should advertise the possibility to use lenses via adapters in combination with a reasonably priced body, including the P67 lenses, M39 macro lenses, and many others.