From April 2012:
The estimated $948 million price tag for a retractable roof stadium for the Atlanta Falcons would probably prove to be significantly low, experts say, adding to questions about how the facility would be paid for.
Two professors who study stadium deals said estimates are generally low to make such projects palatable to governments and the public.
“One of the real rules in these analyses is they always underestimate cost,” said J.C. Bradbury, chairman of the Health, Physical Education, and Sport Science department at Kennesaw State University.
“When they say it will cost $900 million, I’m thinking, ‘How much over a billion is it really going to be? ‘”
The answer: $400 million, for the stadium few want and Atlanta doesn’t need.