As another poster said, this wasn't house-sitting, this was basically boarding. This is the problem with dogs as pets: you absolutely have to board them when you go away, or else you have to pay someone to come to your place several times a day to walk them and clean up after them. That's not cheap, and is why boarding exists (the boarding person/company can have a bunch of peoples' dogs all in one place and take care of them all at the same time).

Why anyone wants a pet that costs so much and can't be left alone for a couple of days, and on top of that needs regular bathing and grooming so they don't stink up your home, I have no idea. These animals made a lot of sense for working on farms and living mostly outside (and still do for people who still live that way in rural areas), but for urban environments they really don't.