hi stthomas:
being able to hear the difference does not imply one will care, or spend money on audio equipment.
the issue is how important is availing oneself of excellence of sound or other aesthetic endeavors.
let me make an analogy.
suppose one has powers of discrimination when it comes to wine tasting. there is no guarantee that such a person will buy the "better" wine or even drink wine.
being able to hear the difference does not imply one will care, or spend money on audio equipment.
the issue is how important is availing oneself of excellence of sound or other aesthetic endeavors.
let me make an analogy.
suppose one has powers of discrimination when it comes to wine tasting. there is no guarantee that such a person will buy the "better" wine or even drink wine.