At $34,990 for the IQ250 you can actually buy 4 Pentax 645Z cameras... and you get a modern body...
Even if Phase One delivers the perfect new body with Photokina, there simply is no justification whatsoever for the price difference.
$35k vs $8.5k:
I know, but I was also factoring in(with the "spare change" difference in money) a few lenses being purchased, like the 25/f4, etc..
Also, depending on what state you reside in, sales tax(usually 7-10%). I'm just glad I don't(currently) live in the EU, with VAT added to pretty much everything

To me, the "perfect"(or as close to it) MFD body is the Hy6 Mod2. I wish P1 would offer their backs in that mount. Basically a modernized Hasselblad V system IMO, with a motor winder and autofocus. Oh, and those sexy-as-hell-bitingly-sharp Schneider lenses... And don't get me started on that super comfortable articulating hand grip...
I wish Pentax/Ricoh much success with this new model, looking at the specs and their marketing campaign to date, I think they're pushing hard for this to become a major player in the pro scene worldwide, not just in the home market of landscape shooters.
-Dan