If the cost is so tiny it doesn't matter, why does Netflix have that annoying "Are You Still Watching '<showname>'?" pop-up that's shown after a few episode have auto-played? It's annoying when binging shows, and I always assumed it was a money-saving measure.
It's in case you've fallen asleep, so you don't suddenly wake up to find you've "watched" three seasons of whatever show you were on. This is only displayed if there's been no input on the remote for some number of hours.
I think it does this after 3 episodes of no input. It's a compromise; they don't want to do this after every episode, but they also don't want you to wake up having watched every season of the show.
It would be nice if it was configurable, though. In fact, it might well configurable; I've never really checked, because the current setting is fine by me.
