After recently upgrading to the K5 IIs I have no use for my older K10D. I do have to admit though, I'm sad to see it go.
That camera and I have been through a lot together. It has been to Yellowstone, Vancouver BC, Rocky Mountain National Park, Michigan, and everywhere in between with me (and the wife). It's taken a lot of good photos for me, both casual and serious.
So, here is to in with the new and out with the old. If the K5 IIs captures half as many memories as well as the K10D did it will be worth it!