I had to pay $150 to clean the house each time I had a booking, that's what it cost me. I passed it along to guests at exactly that cost.
Not sure if it was "worth it" for some guests, or people staying only one night. But that's what I had to pay, it wasn't part of any nefarious strategy. In developed countries it's going to cost to clean that place, that's just the way it is. You don't have the economies of scale that a hotel has with a team of maids.