Landok,
"The idea of being able to adjust the sweet spot to your liking hints at creating imbalances within the system."
Well in audiophile terms this would be like using speaker cable to change the sound, the fact that a simple press of a button facilitates change is actually a wonderful thing...well it is when you know what you're doing trust me ;)
I don't have the time to bring you up to speed, but I know what I can do with a surround system would bend you mind to a very uncomfortable angle. Because all of the things you are so certain are true would suddenly be challenged.
People who can setup surround see oppurtunity where you and other 2 channel traditionalist see obstacles.
Surround is not over rated, it is under utilized and in your case simply not understood at its basic level. Keep in mind that I don't listen to discrete multi-channel Cd's I listen too two channel CD's in surround (TMS, Trifield, DPL2) and let me note that my multi-channel systems can play two channel in the same league as ANY two channel system.
I state that just to make you understand that I'm not speaking to you with my 2 year old Denon surround sound system as my primary experience. I have had and technically still do have a very high end 2 channel systems. Probably better than yours.