Check out the Google ad for the 550 Vanderbilt condo building: it quotes Curbed as saying "The First Condos At Atlantic Yards Will Start at $550K."
That $550,000 figure was true upon publication 3/2/15. It is no longer. (It's curious that the developers Greenland Forest City Partners are willing to quote Curbed as calling the project "Atlantic Yards" rather than "Pacific Park Brooklyn.")
Now check out the actual availability linked from the ad: condos start at $625,000.