The Olympics can be awesome for cities. Or they can be devastating. Rarely they're both, and most often they are an economic drain caused by over-investment in facilities with limited long-term usability. So when London's plans for a 2012 Summer Olympics stadium that would reduce from 80,000 seats during the games to a more realistically usable 25,000 seats after, Olympics experts, city officials and taxpayers rejoiced. But recent news has turned that rejoice to disgust.