A dishwasher is a one time capital investment that saves water (a cost), time (that can be spent on self-directed pursuits), and human cost from under-sanitized

A dishwasher is a one time capital investment that saves water (a cost), time (that can be spent on self-directed pursuits), and human cost from under-sanitized dishes (even something like nausea from cross-contaminated food poisoning reduces a human's productitivity in their self directed pursuits).