why couldn't I take the vision camera unit ( http://www.intelligentuas.com/Phantom-2 ... ng-Bracket ) and the vision controller ( http://www.intelligentuas.com/Phantom-2 ... Controller ) and turn my phantom into a vision for $660? I'd get to continue using my current phantom and the 8 batteries I already have for it. Granted at that price you might as well get the naza/venmuse package for $699 and sell the naza for the cost of a gopro and call it a day. But still. why can't I?