I want to like the AVP. I don't dispute the advances they're making in that niche genre. But that's all it is ... a niche product providing a service to who, really? 10 gamers in Silicon Valley with disposable incomes? US Military pilots?
The product fails miserably as an affordable, Google Glass or Meta glasses wearable for the average consumer. Currently, I don't think average Apple enthusiasts are willing to shell out thousands of dollars for eye tracking and gesture based functionality just yet.
Smaller, and more subtle, with just the right amount of marketing, partnership with eye glass manufacturers, and the real Vision sector - optometrists, and this product could one day emerge from Apple's money pit.