I think it will be big among the population of people who play video games (i.e. young people who aren't strapped for time and energy). As a relatively young adult (30s no kids), I can't imagine fitting anything like this into my day. Wake up at 6am, exercise, work for 8-10hours, eat dinner, then trace an area out on my floor and enter another world while my wife sits on the couch alone? I think the tech is cool, but can't practically fit into my life of real-world responsibilities.