The Denon X4200 (MRSP $1500, on sale for $799) is a really nice AVR.
So it seems your components "cost ratio" is slightly "unbalanced".
Reason is b/c some people believe that speakers and subwoofers are salient. Electronics (AVR) are also important, just not as important as speakers and subs.
Some people may spend at least twice as much for speakers/ subs as they do for the AVR.
For example, some people with $1500 AVR's may spend $2500-$5000 for speakers/subs.
I just have a feeling if you buy those Pioneer speakers (which are good speakers), you will end up upgrading to more expensive speakers later. So you may just plan ahead, save up, and do it "right" the first time. Upgrade Fever affects us all.