Example; the Legend of Zelda: BotW and TotK weapon degradation system. At first I was annoyed at it, but once I stopped caring about my “favorite weapon” I really started to enjoy the system. I think it lends really well to the sandbox nature of the game and it itches that resourcefulness nature inside me.
I enjoyed the ending to the Battlestar Galactica series. I know there were some missed opportunities but the writer's strike had an impact.