RedBox gives you a great incentive to confirm your email (which is not needed to use the service).
This builds their database, allows them to send you marketing, deals, and to track your rental history to suggest movies you may like.
The coupon is for $1. The cost of a one night rental. I have to drive to the store again, and still go through the rig-a-ma-roll of getting the movie from the box.
One of the benefits of “products as a service” is that it comes to me, on demand, when I want it. Netflix still wins here because I don’t have to get in my car.