Yamaha 665 vs 663 Opinion Needed

[Fors*]

OK, I have read the specs between the 2 and they appear to be very similiar, except the 663 has a little bit more power and the 665 has 2 more HDMI inputs. I see that the 663 weighs about 8 lbs more than the 665, so does this imply that the 665 is not as "solid" a receiver as the 663? (Like the way many have compared the Onkyo 805's weight to the Onkyo 806?) I ask because I am looking into getting an amp, and I need an AVR with pre-outs first. I found a brand new 665 on this site for only $384.99 : as it is usually around $500 brand new.

http://powersellernyc.com/product/vi...ver-23809.html

I think this is a pretty good darn price point, but I am mostly familiar with Onkyo's only. The cheapest I can find the 663 is for around $500 brand new. So, based on the price difference of $116, would purchasing the 665 over the 663 qualify in your opinion as the superior purchase (this is assuming again that the 663 is superior in its build to the 665)?

Input anyone.....?