^^I would agree that other differences are necessary, and that 10 watts is nothing. However, I think the problem is that people aren't seeing the other benefits this receiver will provide as of yet. Hopefully it's just a matter of time before more details are released.
To be honest, it could be 200w x 7 and I don't think it'd justify the price to me, it's going to take those other things such as better video processing etc. Problem is, no one has been provided those details so we're just kicking around the info we have, which is limited to projected power output etc.