Ghost notes are a little like pepper on soup.
Adding pepper in a hot bowl of full-flavoured chicken broth will enhance the flavour and make it that much tastier. Without it, it just feels like it lacks a little something to make it PERFECT. *smack lips*
Adding pepper into a bowl of clear, relaxing, cooling herbal soup would really be unnecessary and spoiling the "feel" of the soup. :evil:
In all cases, doing without ghost notes is just a lack of the icing on the cake, but adding too much always spoils the taste.
Oops... i should mention that this is my perception. It's not a fact. And i'm getting hungry after reding this... :wink: