Strange things: when you start running out of Final Fantasy XV content, and start debating between VI, VII, VIII, XIII as a future target.
Maybe this is what I get for skipping out on the entire series as a kid instead of keeping up with it :P.
Before playing #15, I think the closest I ever really got to any of the games was a short demo of one of the side entries during the PlayStation era. A long, long time ago #7 was kind of just there but despite its success wasn't really popular in the circles I ran with back then. Nor (J)RPGs in general, I suppose.