I don't think it's exactly expensive either, relative to other devices that have seen broad adoption. Computers, smart phones, TVs, (LCD/tube) monitors, tablet

I don't think it's exactly expensive either, relative to other devices that have seen broad adoption. Computers, smart phones, TVs, (LCD/tube) monitors, tablets etc didn't reach that price point until they were in the market for quite a while. Sure it might need to be cheaper to be affordable to 100% of the world, but it's not even close to saturating the market in high income countries yet (or the market share of much more expensive devices). BTW the $300 device is not just a display, it includes a fairly high end smartphone chip in addition to a high res-screen, battery, lenses, controllers, 4 cameras etc. I wouldn't expect major cost reductions anytime soon.