HTC Vive. Not necessarily this specific tech itself, but VR gaming more broadly. My friend and I were ginning ourselves up for years before it came out. I dropped a lot of money on a gaming rig for it. And when I put the googles on... I fucking hated it. I didn't like standing and gaming. I didn't like being so isolated from everyone else in the house. And the games were glorified tech demos slapped together with unity assets. By the time Half Life Alex came out, I had no more fucks to give.
Yeah you can. Although it's hard on the computer, and depending on the type of plane, it might not be really playable in terms of controls (an airliner for instance)
Games like Elite Dangerous or Star Wars Squadron are really fun in VR though
I played a lot of Elite Dangerous until I realized there was not much to do besides "do the profitable thing over and over before it gets nerfed." And by the time Squadrons came out, I also ran out of fucks to give.
VR is too expensive and too rich white boy centric. Let me tell you something; if your business is gaming and the teenager children in China and India can't afford it, your market will NEVER be able to compete with mobile gaming and PC (M&K) gaming