Suppose Kayla decides to make minestrone soup. Which result would be a cost?

 - The minestrone soup will be tastier than the cream of mushroom soup would have been.
 - Kayla will spend more time making the minestrone soup than she would have spent making the cream of mushroom soup.
This result is a cost. It involves giving up or spending something that Kayla wants or needs:
Kayla will spend more time making the minestrone soup than she would have spent making the cream of mushroom soup.