The price isn't that important in the first round. $1k is not too much for some people to buy them and see if they're useful.
If they're useful, the design will get reworked and the price could come down. It's not very reasonable to expect this to work with any pair of glasses, it's apparently projecting onto the lenses so geometry is important. $200 is probably a stretch for the non-glasses part of the deal too.
Google glasses were expensive, a strange design, not very useful, and fairly creepy. But most of the software became Android Wear.
Unfortunately, this product has already failed out of the gate just like Google Glass did: it was never the hokey backwards bulky design of the glasses that mattered... it was the price.
Charge me, say, $200 to add this to frames that aren't thick plastic "hipster" glasses, then I'd buy it.