Follow up to 10 x 10 room speaker dilemma....

I posted a question earlier asking for suggestions for speakers in my room - basically a 10 x 10 cube. As it turns out, there are no nodes or standing waves in the room, so room treatment was not a serious issue, though I will be inserting a couple of bass traps in the corners. Anyone who was kind enough to offer their opinion may recall that I was using Aerial Model 5 speakers with a Vandersteen 2W sub. The best solution I could find after trying most of the suggestions offered, was to get rid of my Blue Circle BC26 amplifier (I was kind of sorry to see it go) and my Vandersteen sub, and insert a Blue Circle AG8000 amplifier. This was a somewhat costly, but EXTREMELY effective solution to the problem. The loss of low mid frequencies was eliminated, and everthing, EVERYTHING, sounds spectacular. I will post a review on audioreview.com later this year, but in short, the AG8000 is unf***ingreal. Now that my shameless rave is over, my question is; Since a change of power amp has brought about all the improvements in my system that new speakers should have, is it possible that we as audio enthusiasts over-emphasize the importance of speakers in a system? Clearly I have a unique room and situation (though don't we all) but am I wrong to be surprised by the effect of superior amplification? I also wonder how often that we as a group address a problem in our systems by changing the wrong piece of equipment? Comments anyone?