"Sick from Doom"?? I don't remember anybody getting sick from Wolfenstein or Doom. Controversy around (for the time) violent graphic realism? Sure. Seasickness? No.
I eventually became less sensitive to it. I imagine the same will happen with VR after we get our "VR legs".
Conversely, if someone has bad experiences and tries to power-through them anyway repeatedly, it can build up an aversion similar to a "bad tequila night" and ruin VR for that person permanently.
Thanks for making Doom! :)
I suppose VR has a higher hurdle-rate because the nausea thing has been pre-telegraphed by early adopters of suboptimal beta tech. But I have no doubt that immersive technology is the future.