It definitely does not scale linearly. A second monitor is a big advantage. A third less so. Infinite visual space would be barely more valuable than that. And

It definitely does not scale linearly. A second monitor is a big advantage. A third less so. Infinite visual space would be barely more valuable than that. And really just having all that screen real estate isn't useful unless it's matched by extremely high resolution, frame rate and field of vision. I can flick my eyes between two monitors but any headset on the market is going to make me turn my head while squeezing my temples.