I mean like... There are things like "dealbreakers" which absolutely make you abandon certain games. But then we got "dealmakers" that hook you into them. What did it for you with FF14?
For me, it's the fact that gathering is not trivialized. Guild Wars 2 and Elder Scrolls Online, while great in many aspects, mock gatherers. Gathering is COMPLETELY secondary. While in FF14, gathering is a class of its own, separate from everything else...