Tropes related to letting a story go on for longer than it might have. If a series keeps going for a long time but keeps getting different stories to go with its new installments, that's somethingelse. No examples of works here, please. Leave it in the relevant trope entries. Yep, not even the Nameksaga.
Arc Fatigue: When the story itself, or at least parts of it, go on for a really long time with little progress.