When I first saw the blue K-30, I fell in love with the color. However, when I found out that the finish available in the US would be shiny and that the blue camera would not be available with the 18-135 lens, I quickly fell out of love.
I did handle the blue K-30 at Crutchfield on Monday. I do think the color is really cool! I do not like the shiny finish because my personal feeling is it makes the camera feel a bit cheaper built than it really is. That is just personal preference, though. I think it looks very nice, actually, I just don't really like the feel of it in my hands. It feels a bit slippery, although the rubbery grip makes up for that a bit.
Anyway, just my thoughts.