As of now we are leaning towards the $1/person + $25 Enter to wins.
You'd be surprised what people would do for a free hand out. Even if it's a pencil, $1, a free sticker. People do love free stuff. Again the more important thing to keep in mind is the fact we want people to #1 feel the experience of using digital currencies and #2 spark enough interest in the story that they want to go home and read more about it.