My wife knows it is my hobby and respects it just as I respect her hobbies. I have a loving wife who enjoys music also.

If you have a nice sports car are you not going to keep it clean and tuned up. If you do not understand how important speaker placement is then you will never understand how important all the other factors are. The imaging and focus rely to a large extent on placement. If you have not witnessed that simple fact you will never hear the differences gear can make.
If your cars front right tire pressure is off by 5 lbs it will pull to the right just as if your front right speaker is towed out more the sound will be off center.
I think this is basic audio knowledge.