It seems with so much entertainment functionality, I won't need all the bells and whistles on my AV Receiver. Fine by me. I completely agree with the opinion that they're useless anyway: http://reviews.cnet.com/8301-33199_7-57576681-221/how-to-save-the-av-receiver/
Let's assume I'll use my Xbox One for all the music, movies, and gaming in the house. The only other thing I'll need is the cable-box which can connect through. Will the cable box work with XboxOne off? That is, will the HDMI be a pass-through by default? And what about that surround 7.1 - is that coming out of the SPDIF? Will I need to ensure that I can decode that, or will a 5.1 suffice?