Okay so if the series are linked in the same universe or anything to do with story they fair enough, it can be named under one name with a number behind it. But Final fantasy has different story every game with new number. So how does it work? What are the things that are constant in all games except for chocobos, spell names and summons?
Playing: Nothing, maybe a bit of LoL. Am I getting old or are games this gen just mediocre? --Yoichi Wada needs to be fired--
Like Caius said, change is the constant. Because FF constantly tries to start anew with every main installment, SE is basically playing a game of roulette with the fans, who I don't think have come to terms with the fact that with freshness comes newness. Long gone are the medieval FFs of olde.
"The only thing that gets me high is the musky scent of my enemy's fear.'' - Stephen Colbert http://s1136.photobucket.com/albums/n496/Elice_Carol/
That's pretty much what links the FF games TC. There are recurring themes, names, creatures, spells, etc. but every time we see a different take on these various aspects. New designs, new mechanics, new characters, etc. That's part of the charm of this series.