If that were actually true they would be making them.
(And they do make them, they're commercial quality equipment and they're easy to find. Consumer's don't want to pay the big bucks for this stuff. Not even you, or you'd go find it.)
I have looked into these things, sadly commercial dishwashers aren't viewed as being suitable for residential purposes. Toasters perhaps, I'll confess to having not looked into those yet. Washing machine and dryer I do plan to buy commercial most likely as soon as the need arises and I don't live in a place with laundry provided.
I'm not exaggerating when I say I'm fine with paying for these things, I've learned time and time again that I'm better off paying more for a quality product than getting the cheapest thing I can possibly find.
