Anything that goes over my eyes is going to be a negative for me, and I'd assume many others. The second you take away my ability to see what's going on in and around me it becomes a difficult sell. Same with VR.
The Deck/Switch/whatever allows me to play my games on the on the sofa whilst my kids watch TV/run around. It allows me to play whilst my family is around me, which is important because if I'm going to essentially lock myself away, I'm just not going to want to play. Which was VRs issue.
Not to mention if you want to play in a public space, on a bus or a train. I can't imagine ever being comfortable with something that robs me of my ability to see what's going on in that scenario.