In this current market, property investors would be stupid to rent out their property, they'll get little to no money back, instead they'll be paying more on it.
I once asked a real estate agent on how are property investors making cash on property if they're not renting it out and he said that they buy property, they horde the property meaning no one gets to stay or live in it, wait for price of property to increase and then sell it after 6-12 months, make a nice $300k profit and re-invest it on another property and do the same thing.
I wish I thought of that...