Not worth it. A more logical upgrade would be to the Denon 4806 or Marantz 9500. You will not notice any difference between the two you are comparing. They are basically cousins, now owned by the same parent company. The Marantz, being a year newer, is offering some new technology on its unit. The next Denon, possibly called the 3806, will have a few more bells and whistles over the Marantz.