I have bought:

-Final Fantasy Anthology
-Final Fantasy VII
-Crisis Core: Final Fantasy VII
-Dirge of Cerberus: Final Fantasy VII
-Final Fantasy VIII
-Final Fantasy X
-Final Fantasy XI
-Final Fantasy XII
-Final Fantasy XIII
-Final Fantasy XIII-2
-Lightning Returns: Final Fantasy XIII
-Final Fantasy XIV: A Realm Reborn
-Final Fantasy Tactics
-Final Fantasy Type-0

I have been gifted:

-Final Fantasy Chronicles
-Final Fantasy IX
-Final Fantasy X-2
-Final Fantasy XIII-2 Collector's Edition (Thanks EoFF! )