November 29, 2013 - Launch
December 9, 2013 - 80,000 LTD
December 23, 2013 - 134,000 LTD
January 31, 2014 - 181,000 LTD
June 12, 2014 - 275,000 LTD
http://blog.es.playstation.com/2014/06/12/entrevista-james-armstrong/
http://www.neogaf.com/forum/showpost.php?p=116159771&postcount=105