LG announced their new Cedia HD TV with 4x the resolution of a standard HD TV. The fact there is no media whatsoever which you can access to take advantage of this 84″ marvel has not stopped LG from putting it on sale at $20K. About the same price the first HD TVs sold for many years ago (not adjusted for inflation).
With no assurance their approach will ever become a standard or that any real media will become available for it, who is going to buy this you might ask? The cool kids of course. The 3% of the population that are pioneers and innovators and want the latest new, new thing.
If you are going to be first to market, you have to get the cool kids to want it.