Originally posted by NaClH2O I can think of one really good reason for opposition: Allocation of resources. To be truthful I'd rather they put the R&D people to work developing a good WA prime with WR. If they developed a 28mm or 24mm WR prime (preferably 28mm) with a max f stop of f/2.0 or faster, I'd be all over it.
Allocation of resources is one of the most important reasons Pentax-Ricoh should offer a FF body; or rather, an allocation of resources that favors K-mount and assures it's survival.
If low-end DSLR is encroached by very good MILC or even very good fixed-lens compacts with largish sensors, and upper-end DSLR is encroached by $1600 FF bodies, Pentax-Ricoh may not even want to continue with K-mount if they have no FF body. Many folks who would buy a lot of the lenses would have left for low-end FF or upper-end MILC.
A FF body would mean more K-mount sales for Ricoh, which would mean that K--mount continues to get investment.
Even if you have no intention of buying a FF Pentax body, and you plan to stick with aps-c K-mount, you should hope Ricoh brings a FF body out.
Pentax FF == an investment in K-mount. No FF Pentax == shrinking K-mount sales, and a possible phase-out at some point.
.