Suppose Florence decides to make vegetable soup. Which result would be a cost?

 - The vegetable soup will be tastier than the beef barley soup would have been.
 - Florence will spend more time making the vegetable soup than she would have spent making the beef barley soup.
This result is a cost. It involves giving up or spending something that Florence wants or needs:
Florence will spend more time making the vegetable soup than she would have spent making the beef barley soup.