I guess it all depends on the market they want to hit with it. As it has appeal for everyone, the price point would kill it.
If they are going for the business/corporate end with high end parts, Yea, the $1500-3000 I would bet would be the price range. This would be for specialty things like shown on the demo. It does fit in this area and would probably sell pretty well, just not very high volume.
If they are trying to do mass sales, with the consumer for home use, it would have to be around the $199 to 399 price range. This all depends where they are planning to go with it. If it will be an add-on for the Xbox one, then the $200-300 range would have to be there. If it's PC only based, geared for the consumer then $300-500.
Besides people with a TON of money burning holes in their pocket, the $1K price point will not sell to the consumer. No matter how cool it is, I wont pay $1K for it...
The bigger issue is, If it's for the Xbox one (crossing fingers for PC/Xbox one) They need to keep the price low, so consumers will buy it and the more that is out there, the more software will come.
It may be the coolest thing out there right now but, with out any media or software, it's just a neat set of glasses that you will use 2-3 times and sit on a shelf.
The success of this device will ALL depend on pricing and software/content.