Originally posted by luker I fear I may be banned for this, but here goes.
I doubt it. Many of us appreciate an opinion backed with an honest effort to advance the art - even if we don't wholly agree with that opinion.
I personally use a class 10 memory card and shoot RAW+ (I get both a DNG and JPEG version of every image). With my shooting style, I have yet to out-shoot my camera's ability to write the data to the card. I'm comfortable with how my camera renders some of its jpegs, and appreciate being able to immediately preview my shots using simple jpeg viewers. At the same time, if I feel an image will benefit from post processing, I MUCH prefer to work on the RAW file. And from my experience, my post-processed jpegs rarely look just like my camera created jpeg files.
So, redimp, the bottom line is Pentax provides multiple multiple formats and none of them are 'wrong'. Use what works best for you.