A friend's family "solved" the problem of cleaning dishes and putting them in the cupboard by having two diswashers, a magnet that said "clean", and a magnet that said "dirty".
(/s)
But really, it might just be that people use 20% of their dish-washable objects 80% of the time. So having 2 dish washers eliminate 80% of the labor of putting them in the cupboard because 80% will be gone in the other machine by the time you really have to fill the cupboards.
Then again, that's lazyness and I suspect the higher humidity of the dishwasher is an health issue.
I'm now seriously contemplating putting this on a my list for when I renovate/build a house.
If I don't like it, it's also pretty easy to rip it out and replace it with a large cabinet, especially if you opt for the "built-in" door cover for the dishwasher.
Econo european models for washing/drying clothes take 6+ hours for a reason.
Reminds me of - and can be combined with - my father's "invention" when he got a bad back of installing the dishwasher at cupboard height.