You’re describing another consequence of hotel and land use regulations. Ease up zoning and hotels in a house form-factor will be built, as demand clearly exists!
Even that might not pencil out like the airbnb. Its still potentially someones home so it doesn’t have to stand alone as a business that fully covers its costs and makes a profit margin. A hotel on the otherhand would have to do that. I don’t imagine youd ever be able to rent an entire home from a hotel company for just a few dozen dollars more than a basic hotel room.