Its your choice to crock or not ..I have two large ones and two small ones and its just the two of us; but I also have a freezer. So many of our items go into the freezer for later eatings .. Sometimes DH uses the small ones to make green chili or chili in small batches.
I look at it this way-the crock watches my food cook so I can crochet, sew or quilt ! :-)