Gehirnkrampf on 18 February 2013
BTW Sony said that pricecut applies only to japan.
http://www.eurogamer.net/articles/2013-02-18-sony-announces-playstation-vita-price-drop-in-japan
must-have-list for platforms i don't own yet:
WiiU: Donkey Kong
XBone: Dead Rising 3, Ryse