When the housing market is in free fall, is there still an opportunity to make money? Of course! Buy properties, hold them, and sell for profit. Cuidado, my friend - this market is, um, volatile.
Fun game, make it where you can play for an unlimited amount of time.
I like to rent out my properties, not sell them, the money isn't too quick, but I have no debt and can buy homes w/o mortgage.