Um, because you're biased, like it or not?
'tis true. I AM biased and always secretly root for the lower priced component to sound better or the same as the higher priced one. Sometimes, I get my wish, other times I do not. Still, since I am paying for the unit, I'd rather go with my biases and not other persons, and pick the unit that I think sounds best. Is that so hard to understand?
If the differences are signifcant as is often claimed, a double blind test (ABX or not) will show it.
So. If I understand correctly... are you suggesting that you'd spend $600 to ABX test and get the same results you could get with careful crossover listening, just because you feel you are too biased to trust your opinions based on carefully listening?