While disappointing, it was actually revealed in the news the Xb One didn't do 3D then the PS4 news came along.
Both can't do it, but both will do it sometime in the future.
That's the problem with buying these things early, you get all of the headaches, the high prices, small gaming library, and you wait for features you took for granted on the last gen machines.
Why do it? I feel like an idiot typing right now because my answer is I'm an adult with extra income and I like to play with the toys before I die, lol.
It's remarkable these machines feel sort of half baked right now.