A lot of people wish we would sell a bundle without “useless extras” like high-end audio, a carrying case, the bundled games, etc, but those just don’t significantly impact the cost. The core technology in the Rift is the main driver - two built-for-VR OLED displays with very high refresh rate and pixel density, a very precise tracking system, mechanical adjustment systems that must be lightweight, durable, and precise, and cutting-edge optics that are more complex to manufacture than many high end DSLR lenses. It is expensive, but for the $599 you spend, you get a lot more than spending $599 on pretty much any other consumer electronics devices - phones that cost $599 cost a fraction of that to make, same with mid-range TVs that cost $599.