I generally play games I like, so they can stay for as long as they want. It is why I enjoy JRPGs so much, months on one game is great because then I can really get immersed in the plot, setting and characters.
That said, when a game is acting like it is the final dungeon, BUT WAIT there is another final dungeon, ACTUALLY that wasn't the final dungeon either, here is a boss rush because you love killing bosses you already beat but harder now and not in NG+, now here is the final boss, ah but you didn't unlock the real final boss because you didn't talk to that one guy in the random town, too bad.
That is when I can get a little irritated.







