On the other hand, some components get so abused in a commercial/industrial setting, that they're considered consumable parts of the machine, making "long life if lightly used" into a complete non-consideration in the design process.
You probably don't want a commercial-kitchen dishwasher; IIRC you're expected to have someone in to replace the hoses in them every year or two, because they make those hoses out of plastics that are tolerant to higher temperatures, but at the expense of plasticizer degradation (becoming stiff + brittle) after just sitting around at ambient temperature-and-pressure for a few years. A residential dishwasher, while not able to clean as well, will be able to start up just fine after years of disuse; which is more what you want in a house or apartment that might go years sitting empty.
Commercial dishwashers work completely differently from home ones. They are designed to use the same water across multiple loads. Home ones clean way better but take 1.5 hours per load rather than the 3 minutes commercial ones use. Have you ever actually used a commercial dishwasher? They are about as similar to a residential dishwasher as a Porsche is to a dump truck.
You probably don't want a commercial-kitchen dishwasher; IIRC you're expected to have someone in to replace the hoses in them every year or two, because they make those hoses out of plastics that are tolerant to higher temperatures, but at the expense of plasticizer degradation (becoming stiff + brittle) after just sitting around at ambient temperature-and-pressure for a few years. A residential dishwasher, while not able to clean as well, will be able to start up just fine after years of disuse; which is more what you want in a house or apartment that might go years sitting empty.