If you can pull this off I can't see why it wouldn't take off. People play video games as an escape, or to exercise creativity or even just to express themselves and how they are feeling. Attaining lucidity allows a person to do this within a dream in any way they like and a video game that allows a player to do, right now, whatever they feel like could become a big thing.

I will say however that I am glad it's not me attempting this. :3