You just find yourself in the corner yield "Please stop, it dead! It's been dead for years!" For example Star Wars, that francise is completely ruined, but the fans are insufferable and just keeps pouring money into something that quite frankly sucks by now.
Why must everything be milked dry to the point where we start hating it?
So clearly someone, somewhere is enjoying it - so they keep making them.
And it's safer from a business perspective for Blizzard to release "another WoW expansion" than try to make a new game.
(There is also the aspect that you can sell on nostalgia with the toys, etc, and that you can continue to sell the "old toys" and movies and account them as if they're part of the new, which makes you look better, etc).
> ...Andor is peak Star Wars...
This is both true and false depending on how you mean it: Andor is one of the best story-telling set in the Star Wars universe, and yet, there's nothing emblematically "Star Wars" about it. The same story and characters could have been dropped into any universe, and it would have been fantastic television. It could have been a story about a partisan in WwII, or set in Babylon 5 or in any of the Mass Effect / Silo / Godfather / Fall Out / Dune / Marvel / DC universes, and it would still have worked been largely the same story. Andor gives to the Star Wars universe far more than it receives from the same, it was an expensive labor of love by people delivering their best work - I don't think we'll see anything like it again from Star Wars.