There are many reasons for lack of VR and AR popularity, here are some of them:

1. Hardware cost: HMD are expensive, with Meta Quest 2 starting at $400, and other options usually being more expensive.

2. Poor display quality: most headsets experience a "screen door effect", a visual artifact of displays, where the lines separating pixels become visible in the displayed image.

3. Nausea and motion sickness: Latency in displaying image, low FPS, or a drop in FPS, or jittery movement of displayed objects can cause nausea. Driving or walking in VR, when done by controller rather than by physically moving, is known to sometimes produce motion sickness.

4. Poor realism: In order to archive high, stable framerate, many games choose to trade graphics quality for speed, resulting in simplistic, crude models and environment.

4. Weight: VR and AR HMD are heavy, and uncomfortable to wear over long periods of time.

5. Fashion: AR devices are bulky and unfashionable, and the cameras and sensors required for their work are seen as intrusion into privacy.

6. Content: VR and AR are available at affordable price only since very recently, and therefore are young technologies, with a limited amount of content available for them.
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