I'm a bit amazed they work. In a Blockbuster, you can have a few dozen people looking around at once for the right movie to watch. On Friday and Saturday nigh

I'm a bit amazed they work. In a Blockbuster, you can have a few dozen people looking around at once for the right movie to watch. On Friday and Saturday nights, they were often packed. But a kiosk, you have to wait for the other person to finish browsing and purchasing. Seems like they work precisely because the demand is just low enough that there is not too much contention for any one kiosk.