I thought that about the Wii, but me and my lads still stand to play that. The games are a bit crap, so we only play for an hour or so, but standing to play isn't an issue for us (much to my surprise)
The Wii may actually be a case in point, since it never really got that much consumer uptake, and no other platform has picked up the mantle with physically active games.
As with the Vive, it seemed like the future at the time, the concept games were a lot of fun, and it scared competing platforms to rush out imitating products (Xbox Kinect, PS Move). But neither have ultimately had much adoption.
The Wii was Nintendo's most successful console, selling over 100 million units.
Like you said, Microsoft and Sony both introduced motion controllers for their consoles. The Kinect was the fastest selling consumer electronics device.
I feel like the happiest Kinect customers were research groups and some artists, because it was the first really cheap depth camera system you could buy readymade.
The kinect was crap. It was almost good, but it just wasn't there, it would miss things, get confused, it wouldn't pick up one of my lads (he was too small?) and the games were really boring.