For additional seasons of their existing shows, they already have sunk costs for sets, props, and all that jazz. I don't know much about the economics of produc

For additional seasons of their existing shows, they already have sunk costs for sets, props, and all that jazz. I don't know much about the economics of production, but I'm sure there's some sizable cost savings from leveraging those existing assets during subsequent seasons (same for movie sequels). They've also been pumping out animated kids shows quite heavily. Those are almost certainly less expensive per hour than a lot of their blockbuster hits, and would easily allow for a 66% increase in content-hours with only a 20% budget increase. And, anecdotally, are the types of shows that keep subscriptions active long after parents stop actively watching things. Kids get attached to characters easily, can watch the same season repeat dozens and dozens of times, and benefit from consistency (i.e. not app hopping between Amazon Video, Netflix, Hulu, etc). And the value of Netflix during times like extended traveling and running errands is not to be underestimated. My subscription would have gone long ago if my daughter weren't so attached to some of their Originals. They're really good at making spinoffs of popular movies (like the Puss in Boots spinoff from Shrek) and popular toys (like Ever After High, based on the Monster High dolls).