Quote: Quality and Quality control is the biggest "it" issue. Just look at the threads about problems relating to the KX and K7. Not only on this forum but others. A lot of people have a lot of problems with these two cameras. Too many to ignore. More so than current Canon DSLR's in the same price/features bracket.
The grass is always greener on the other side.
I just switched from canon. On the canon side, people are complaining about all sorts of quality control issues. The 5d has focus issues and the AF points are all in the center. The 7d has noise issues, ghosting problems, and autofocus issues. Canon customer service is shrugging off complaints. People are accusing Canon of false advertising, some are even switching to Nikon, etc. I'm sure there are those in the Nikon pool as well with similar complaints.
I don't think there are any more (or less) issues with Pentax than there are with Canikon. I think they are just issues with the camera world in general, and it bounces back and forth between the manufacturers. I'm happy with my k-7. It's cheaper than the equivalent cameras from another brand. Sure, there are things I would like changed (the sensor for one) but I don't think I would be any more (or less) satisfied with another brand. The only major reason I see to go over to another brand is for full frame bodies, which at this time I don't really care about.