The Roomba is a successful product, (10% of the market in the US, most sold vacuum clearer). But it's not what we thought the market for robots at home would be. I remember Gates perpetually betting on robotics as the next hit.
Same for Apple Watch, not as ubiquitous as a iPhones, but pretty popular.
If everything seems like a failure compared to smartphones, maybe we shouldn't use it as a benchmark.
Its here to stay, but the motion problem isn’t solvable in the near future
I'm a bachelor so I have a huge empty space in my living room. When I first got the quest I could walk around freely in a 12x12 area, and the first thought that went through my mind was "holy shit, if I could just keep walking this would be incredible. Like, I never want to stop incredible". If they can ever sort out the treadmills, or it becomes common to open up large gymnasiums for group VR sessions, I could see it becoming way more interesting.