Inexplicable Anomalies: "The Ringworld Throne" by Larry Niven
(Original Review, 1980-07-01)
Now we're going to argue the reasons for sequels? It's straightforward here. Niven obviously doesn't need the money (although it can't hurt too badly). It's those damned readers who keep begging for more and pawing after him at every convention, in every fanzine, in all his letters, etc. ad infinitum. He's got to do *something* to shut them up, else go insane, bug-nuts.
If you're into stuff like this, you can read the full review.