How can HMD manufacturers compete with Oculus, who can afford to subsidize?

This isn't Oculus/Facebook hate, I'm actually really glad they're able to sell their solution at a price that will encourage more VR adoption....

from: https://www.google.com/url?rct=j&sa=t&url=https://www.reddit.com/r/Vive/comments/6nqlsw/how_can_hmd_manufacturers_compete_with_oculus_who/&ct=ga&cd=CAIyGmIzMzRiYTExMGZiMDVhNDI6Y29tOmVuOlVT&usg=AFQjCNHNa7JUNWJRmXPhRqEPQ4Vfo4ltUg