Music is such an emotional experience and sometimes defies logic, especially when it comes to buying audio gear, at least for me. Two years ago, I bought a used NAD T763 and fell in love with it. In conjunction with my newly acquired Sony S5000ES bluray player and its superior multi channel analog output, I was able to experience lossless audio in its glory. However, I lamented the fact that this receiver was only 6.1 and not 7.1 and the fact it cannot do hdmi audio from my gen 1 PS3 for my few SACDs and also no room correction. When the T775HD went on sale in June of 2011, I pounced on the deal and put away my T763. After enjoying the T775HD for almost 2 years, I had to send it for warranty repair. Now I have my T763 back in my setup and after calibrating it manually, I love the sound. I am starting to think, what was I thinking when I bought my T775HD two years ago. I haven't listened to that many SACDs. Most content is still 5.1 and I can even simulate the 7th channel from a single back channel I guess. The only thing I will be missing is Audyssey. I am not sure that alone has bought me as much use.
Anyways, such conflicting feelings now. Meanwhile, I am going back to listening to some great music on my T763.