From Rick Morrissey:
Chicago can learn some lessons from London and other Olympic sites. One is what a former pub owner here told me: Greed always kills. Hotels that had jacked up their prices for the Games found themselves with lots of empty rooms. Then they slashed those prices. Too late. Greed had done them in.
I'll take this at face value. Greed didn't do them in. I'm guessing something more powerful did them in: free market competition.