Sorry if this is a dumb question (which I'm sure it is). Anyways, I was wondering, is there any benefit, besides having more features, inputs, outputs, etc. to having a really good reciever if you're gonna get a seperate amplifer? In other words, does it make a difference if you buy a $400 receiver or a $2500 reciever if you're gonna be hooking it up to a seperate amp? Wouldn't the amp handle all the sound pushing and the only differences would be the inherent features/input/output differences between the cheap and expensive model?