Or at least not enough people.
The manus are holding off any volume predictions because they don't see anything driving the sales.
Blueray pushed HD, and past 1080p most people simply can't tell the difference, and certainly aren't willing to pay a multiple of base cost for what they can tell. The football is being tracked close enough right now, and those pores on the actress that used to be pretty has redefined beauty, yet again, and not in any good way.
We need a new tech to feed them before they take off, and that won't be for a few years. Until then, no point.