The problem is that there are no limits on how many short-term rentals a single property owner can operate, he said.In some Arizona cities, Drennon said, “bad actors” are buying and converting entire apartment buildings into Airbnb rentals, effectively creating hotels in residential areas and depleting local supplies of rental housing.By contrast, traditional hotels typically operate in commercial areas that have much higher property tax rates.Many cities around the world — from Paris to New York City and even Airbnb’s home city of San Francisco — have laws that limit short-term rentals to protect the hotel industry and residential neighborhoods.

If you connect with investor freindly agent I'm sure they'll be happy to supply with the data.  

Prices are always going to be determined by supply and demand and as you continue to have a growing population and good paying jobs coming to town, that only helps the case for prices to go up.

I once traded a 19' Fishing boat that I took in trade for a down payment on a house and traded it for supplies.

You say to hook the garden hose to the "washer hookup on the house" but that's a water supply line, meaning water comes out of it.

I think all I did was procurement of supplies and installed 1 dishwasher. 

(Supply is also going up, but not fast enough to stop the rate of rental increase.)

However, this option also requires that they share their candy with other children who knock on the door and they will soon discover a rapidly diminishing supply of sugary sweets in their bucket.

If a contractor starts to do good work at a decent price eventually they likely will be flooded with business and up prices (supply and demand).Read J Scott's book on here from 123flip  

You will also have cleaning supplies, legal / accounting fees, and if in your area possibly AC maintenance.