DQIX has a couple thing in its favor:
1) Virtually no other games release this week
2) Its a bit cheaper than most DQ games (~$60 vs ~$80)
3) One save slot. If multiple people in a household want to play it, they'll buy multiple copies.
4) DS has a userbase of 27m in Japan, which is only 10% lower than the worldwide 360 base, and over 20% higher than the world PS3 base. Hell its more than half as big as the world Wii base.
5) I doubt this game cost more than $5m to make (which is actually quite high for a DS game). If Square-Enix gets $25/copy or something they can make over $100m profit on this game in Japan which can pay for huge development costs of prettier games releasing on smaller bases.
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu