No doubt it'll be cheaper in the not too distant future (I expect it to be < $300 when production ramps up). But the carriers seem to be dropping overt subsidies.
Or maybe they'll be sponsored ala AT&T's sponsored data stuff - http://www.reuters.c...BREA050PT20140106 - (but you won't be able to opt out without paying a small fortune), or something...
Since I already have spectacles, I'm waiting to see how the prescription version work out, and for the cost to fall substantially, before seriously considering such things. But even then, it may be after retirement before I purchase one (I imagine lots of workplaces won't permit them for years). 3? Maybe, but I'd be surprised.