Exactly, Cloud reached that number with one game, the other with 3.
I was joking, but here were the sales for the FF13 trilogy 2 months ago
Final Fantasy XIII ~525K
Final Fantasy XIII-2 ~275k
Lightning Returns ~75k
Final Fantasy VII ~980k
Lightning Returns came out in December, and a lot of people wait for those 50% off sales to grab their Final Fantasy games. I'm sure it will be closer to 250k by the end of the year. FF7 will be on top for a long time, but the series in general does quite well considering that they never really go on sale for more than 50% off, have a spotty PC port record, and have had very little bundling (basically just those Square Enix store mystery bundles).
EDIT: And all of this on top of every game being late ports (sometimes several years late).