So I was exercising in my Beijing hotel and the view from the gym looked like this:
So later on, it hit me: While I doubt many out-of-shape Western gamers really want it, a country like China would probably embrace this Oculus Rift merged to a 3D treadmill technology. Because the thing is, Beijing is hardly the only epicly polluted city in China -- there are many more. In Beijing, even on nice days (and there are many of those, actually), you rarely see people jogging or otherwise exercising outside, probably because most city dwellers don't associate the outdoors with health. At the same time, since the Chinese government has banned videogame consoles, PC gaming is extremely popular in China, and there's several successful local PC manufacturers like Lenovo... so, put the pieces together.