Well, I've been moving around with a left stick in DK1, then in DK2, and now in the Rift CV1 for over 3 years now.Oh I thought that and why I am interested in VIVE, but you heard the GB guys, they dont want to be in a 360 deg box, they want to move around move using a left stick.
I don't think it's the future. At all.
Also, yes, cockpit experiences can be done so that many people don't get sick from induced movement. But ultimately, what that comes down to is a tradeoff between immersion and sickness.
In any case, if you believe in the "VR + traditional movement" experience, then the Vive can do that too. Me, I'd rather take my chances with the "box" and the innovative ways developers have come up with and will continue to come up with to use it.