Macworld Having launched earlier this year with an eye-watering $3,499 price tag, Apple’s Vision Pro headset hasn’t shifted a lot of units… and was never really expected to, given its obviously limited budgetary appeal. In the long term, however, Apple wants to target more mainstream consumers with its spatial computing platform, and that means finding a way to get the price of the headsets down. Right now, the priority of Cupertino’s Vision Products Group (VPG) is to develop a cheaper successor to Vision Pro, currently codenamed N107. But a new report from Bloomberg reporter Mark Gurman revea…