It isn't that unusual for development edition of devices to cost a lot more than what they would in retail form. The Google Glass, for example, sported a $1,500 tag but was promised a much wallet-friendly launch price. If it had launched in the first place. That said, $3,000 for a non-final, development version of an augmented reality headset might be too much to swallow. And yet that is the steep price that Microsoft is tipped to be asking in exchange for being one of the first to try out its HoloLens.