I've also changed up my QRO line-up. I have the FT-5000DX which is a wonderful radio. It does however take up a fair amount of real estate on my, not-so-big, desk. Along with VL-1000 amp, I don't have much room left over. So, I am sending the FT-5000 to my ranch station and replacing it at the home shack with a K3. Not a bad trade. I just received the K3 and am getting comfortable with it. Having owned a KX3 for while, the learning curve is not too steep. There is another agenda here and that is I want to be able to remote into my home station when away and Elecraft has an elegant solution for that. They build a K3/0 which looks just like the K3 but without the TX and RX circuitry. So when remote, you have the same front end to play with. Plug in your key, link up, spin the knobs and away you go. At least that's the theory. I will be setting this up soon and I will report on the progress.
So the circle of life is always with us, which makes life interesting.