Except its the most anticipated remake in Japan as well as the rest of the world...
"Crisis Core sold 350,000 copies in Japan on its release date, including the 77,777 Limited Edition PSP/Crisis Core bundles.[74] In November 2007, Square Enix announced that Crisis Core was its best-selling game across all regions from April through September, with 710,000 copies sold in Japan. Selling 790,705 units as of August 2008, it became the third best-selling game for the PSP in Japan.[76]"
"As of November 2008, over 513,000 copies of the game have been sold in Japan alone.[56]"
WUT?
Do you even Final Fantasy? The only games that sold better than those 'bombs' were monster hunter, the only games that broke 1 million sales were monster hunter, nothing else.
Also, your understanding of software sales > hardware sales is so flawed, of 100 million ps ones, only 10 million FF7 were sold, a game widely regarded as its best selling/critically acclaimed games, yet only 1/10th bought it. Attach rate of games to hardware is generally very low, only massive games like GTA or Mario have an attach rate of greater than 1 in 10 routinely.