Actually it wouldn't be. You are buying an asset for 50% off which will continue to go up in price. And you get to pay a rentor a cheap rent to take care of you

Actually it wouldn't be. You are buying an asset for 50% off which will continue to go up in price. And you get to pay a rentor a cheap rent to take care of your asset their entire lives. It's a great deal if you can get it. The only time this will get problematic is if housing prices drop and continue to drop.