If they're not that rare, why are they rare? Where did I make a judgement on their success or even use that word? Are you replying to the right person? I doubt you've looked into the theory behind screen addiction (I didn't believe it either). It's the vivid colors and the effects they have on your brain according to neuroscience, plus the manipulation that companies utilize. I've changed my screens to grayscale and have no such problems now.