I really have no idea with this, but I don't think people will be willing to pay too much for what is essentially a second controller. Unlike something like Kinect or the Balance Board, people will already have one of these, and so I'm not sure how willing they'll be to buy another at a high price. So I think it could be a while until they are available, so that they can price them at $99.99 or lower, and maybe bundle in a game. I don't see them selling for anything higher. This is, of course, assuming that it actually costs a lot to manufacture them, otherwise we could see them sooner/cheaper.