c0rd on 19 September 2009
When FFX released on the PS2, the userbase was at 5 mil. It sold 1.9 mil first week (38% attach rate).
To be fair to FFXIII, I'd say FF has slowly been declining in sales (look at the PS1 FF's). Still, if it sells to less than 30% of the userbase first week (probably around 1.2mil when it comes out), I think it'd be disappointing for the series. This is Final Fantasy, after all.
As for DQ9 outselling FFXIII, there's an outside chance. If it's a hit in the west (~3mil), it has a shot. I doubt it can get that high, though.
