From Tokyo's Yodobashi Camera display:
Huge differences in finishes and have to admit that I prefer the "Silky".
The "Crystal" really are shiny and pick up all reflections, some colours more than others, take the black for example.
All of these cameras are just dummy models.
On the Pentax display, there is only the Q and K-01; no K-5.
I imagine a working K-30 will be on display in the next few days.
Still, the K-30 feels very good in the hands.
The grip is nice and the body seems well-made and not too plasticky.