Sword Art Online: Hollow Fragment tops 400K worldwide

Its the old shipments vs sales conundrum here, as Bandai Namco announces the game has passed the 400,000 mark in "cumulative shipments", following its western release. With a sequel of sorts on the way in the form of Lost Song, who know how long this saga could keep running.

The game had sold 200,000 in Japan in 2013, so not sure how much of that translates to western shipments/sales, but it must be making an impression with the constant stream of extra content and updates. Haven't got this yet, but guess I should pick it up to be up with the in-crowd. Any impressions?