How would you score the improvement you got by changing the receiver, than by adding a power amp to your new receiver , from 1 to 100?
Or in other terms: did your other half/family i.e. objective people notice the difference and said: yes your investment is justified, I can really hear it and I wouldn't want you to come back to how it sounded before...
Not that it matters most, but these people are not dragged by the fact they invest money so they won't shy away from saying: nope, not a big difference.
Another question regarding 7125 Vs 7200 for instance: besides the added power, would you say there's a difference in quality of sound between both? or is it just because some people are compulsive about power (or live in a gigantic home?)