I'm an avid Square and Final Fantasy fan, and I've played almost all the pre-PS2 games, in both their US and JP versions. However, I stopped playing after FFIX, largely because at the time I couldn't afford a PS2 at the time, and got sidetracked by many other games as well.
I'm wondering if FFX, XII, and XIII are worth it (I'm not bothering with XI and XIV since... online mmo... can't really 'finish')
What about the other spinoffs as well? (X-2, XIII-2, XIII-LR)