As of today I completed owning a true copy of every Final Fantasy (as in no emulators) in the main series excluding XI.

I & II - PSP Remakes

III - DS Remake

IV, V & VI - GBA Remakes

VII, VIII & IX - PSX

X, X-2 & XII - PS2

XIII - PS3

Also noteworthy I have Crisis Core, Dissidia, and Tactics on PSP. and downloaded IX from PSN

FINAL FANTASY FTW!!!!!!