Originally posted by DSims I think you need to conceive a little more. Battery Grip and nice CCD color are two advantages of the K200D.
Yes, I forgot about the battery grip. That is a K200D advantage.
I don't accept "CCD colour" as an advantage. The old Sony/Pentax 6mp and 10mp sensors had an overly warm white balance that you may have preferred, but was not accurate. CMOS sensors from the K-x through the K-5 II went to the opposite end of the spectrum, they were too cool (blue). The K20D sensor had the most accurate white balance, IMO, The K-3 is also excellent.
WB is infinitely variable on a digital camera. Adjust it whatever way you like. DXOMark measurements for the K-50 show it has slightly better colour depth than the K200D (23.7 vs. 22.4 bits), so colour is a K-50 advantage.