Comment by hajile

For me, the big difference is apps. I have a Quest and there's not much usable stuff for it. I can see a lot of those ipad/iphone/mac apps as useful on an AR device.

Quality also matters. I don't really like looking through the Quest for very long. Fresnel lenses and meh screen combined with a terrible processor means the visual experience isn't very good. I'd bet a lot that their custom lenses and screens combined with a decent SoC offer a HUGE jump in visual fidelity.