Just discovered this thread for the K-7, I was about to start a "Is there Any Love for the K-7" but I found this!
I already have a K-5 (my first digital Pentax), and my wife has/uses a K-3ii. I'm away on a weekly basis and I wanted something compatible just to keep in my suitcase without having to constantly swap stuff during the packing ritual. K-7 prices were under $200 so how could I resist? So when out and about in my travels, the K-7 is there when I need it and still performs admirably.
It's still a viable, relevant and reliable camera that soldiers on and provides excellent image quality!