Cigar smoking is supposed to be a pleasurable experience ... that is why most of us picked up the hobby (habit) ... right?
A cigars is meant to be something relax with, and to help sooth out life's daily strifes. There are people I know that will put down even the finest cigar after it's half way through ... because after that point, it no longer becomes a pleasure for them.
If a particular cigar doesn't do that for you ... by all means, throw it out!
Life's too short to smoke a bad cigar ...