Quote from Woody in The Groom Wore Clearasil
Carla: What did you tell my kid, huh? Sam: Well, basically, why buy the cow when you can get the milk for free? Woody: Well, I'll tell you why. Companionship, warmth on a cold night, someone to share your old age with. Norm: You think he should marry her? Woody: I thought we were talking about a cow.