I think the problem with your theory is that (if you believe in the placebo effect) then your "ability to distinguish the rest from the best" could all be in your mind right? In other words if I think I hear a difference in cables because of the placebo effect, then wouldn't it stand to reason that you may not hear a difference in cables because of the placebo effect? You don't hear a difference because you "think" there is no difference and don't "expect" to hear a diffence. It works both ways. Frankly I would rather be on your side than mine. Unfortunately I "think" there is a difference so I will spend my money accordingly.

It may seem crazy, but I could swear my car "runs" better after I wash and wax it!

Mr Vinyl

PS There will never be another Thurman Munson.