I ended up buying a Pioneer 9100 over a 1015 because I wanted the better claimed fidelity from higher quality parts and "advanced MCACC". However, ALL the sites listing details for the 9100 are incorrect from Best Buy to Vanns to sellers on eBay. The 9100 is more of a 52tx(1014 internals/DSPs) with dual room capability, newer 1 line LCD remote and nice black/gold visuals. It is NOT a dumbed down 54tx with either 40 pound weight (actual weight just over 33 pounds) or advanced MCACC.
I don't need the dual room feature and would have preferred THX Select 2 and three component inputs on a 1015 for slightly less $$ - looks like it will go up for sale sooner than I thought even though I got a very low $429 shipped price
Hope this helps anyone else who can't seem to get straight details on the 9100