I love the Marco Polo series, but I've only once watched more than two episodes back to back. Likewise for Jennifer Jones. Guess I'm just not a binge watcher.
OTOH, I have no problem watching a 2:20 long movie or even two of them back to back. Movies simply draw me in more than episodic TV does.
But i hardly watch movies at all anymore.
I don't think of watching several movies in a row as binging them, I'd call that a "movie marathon" especially if they were a series (e.g. watching a trilogy like Lord of the Rings one after another).
What is useful to Netflix is watching a whole show over the course of several weeks, a few episodes at a time.
The primary way my wife and I consume shows is to watch a few episodes a day, every day, until we've watched from the first to the last available episode. We are currently watching through The Good Wife on Netflix which, at 134 episodes, will take us about 2 months.
For me that's a good deal, because it would cost about £35 for a DVD boxset (yes, I could shop around, but only if my time is worthless), while Netflix only costs me £18 for 2 months. For Netflix that's a good deal, because they've got 2 months of subscription from me for 1 show.
Once we've finished with The Good Wife, we'll find another show to watch.
We watch about the equivalent of a movie each night, but we aren't going to watch enough movies in a month to make it feel worth keeping the subscription. Movies require a larger investment, because the characters and world are new and different with each one. With a TV show the characters are recurring, so you don't have to invest as much, which makes them easier to watch a lot of in a row.