> Is it even worth it for 1 or 2cm? Yes. It's worth it. It's such a significant difference that I just have zero interest in 3dof headsets for anything other t

> Is it even worth it for 1 or 2cm? Yes. It's worth it. It's such a significant difference that I just have zero interest in 3dof headsets for anything other than 360 video (and I've got very little interest in 360 video) With 3dof, the minute you lean or move your head by a small amount, the whole illusion is shattered and you are reminded that you're just watching a stereoscopic skydome that's glued to your head. It's also why lag and low refresh rates are an immersion killer for 6dof. Plus - even seated experiences allow a lot of mobility. You can lean towards things to examine them closer. You can duck to either side. "Seated" doesn't mean "immobile apart from your head"