Jester David
Hero
That's a very generous analogy! A person might also point out that some writers like writing in a "shared universe" because:
(1) they get paid to write in that shared universe; and
(2) They enjoy the benefits of writing in that shared universe (a known IP that people want to read about).
I am not trying to be too harsh; writing is hard. There are many fine writers that toil in shared (IP) universes. There are a very few (including one who writes about a certain Dark Elf at times) that are even known by name! But for the most part, the readers are seeking out the IP first, the writer second (if at all).*
These books are like comfort food. Readers go in expecting their meatloaf (canon, continuity, characters), and they are happy to get it. And there is nothing wrong with comfort food. There's nothing wrong with saying, "I love Kirk/Darth Vader/FR/Halo/Dr. Who, and I want MOAR!" But that's a bit different than analogizing it to writers who tell their stories in the real world. Jus' sayin'.
*There's nothing wrong with enjoying FR novels, or Star Wars novels, or Halo novels, or whatever. But they succeed primarily because of the IP and the built-in audience; competent writing is a plus. Cf. George R. R. Martin, Stephen Donaldson, Tolkien, etc.
Oh, absolutely. Shared world fiction is a way to break into writing and establish a name. Many writers have started doing shared world stuff before going off on their own.
But there are also quite a few writers who only do fiction. Who could sell a book on their own. Those who actually enjoy having the world created for them. Because worldbuilding is NOT easy. (Or rather, making a *good* world is hard.)