I am going to Nebraska furniture mart today to check it out for myself. I was at Best buy yesterday and several customers said it was on display and the Sony rep was in the process of setting up the 84" 4k as well. Will let you guy's know for anyone in the Kansas City area.
Size is more costly to make than increased resolution. This is the starting price of UHDTV of one of the Chinese brands; .....50">$2,500 USD MSRP .....55"> $3,000 .....65"> $4,000. Expect those prices to be down $1000 each within some months if the prices those sets sell for in China now are an indication.
From what I've read, the industry's best estimate is about 500,000 units will be sold worldwide this year, which is nothing number-wise. That may increase to about 7% of the total world-wide sales by 2016, which, by that time, prices should to be down to around the $2000+ range depending on size and mfr. Native content will still be a problem. So say the experts
Lack of content notwithstanding I applaud this move to higher res for larger panels by manufacturers. I'd personally not buy anything 70" plus unless it was UHD at least and had an outstanding scalar to up convert 1080i or 720p content
I walked into the Houston Sony store that had their 84" 4K display showing a 4K uncompressed demo. Honestly, I thought it was 1080P until I got less than 3 feet away. At that distance, the small details made it obvious it was a higher resolution. But at normal viewing distances? No, I could tell no difference in the increased resolution.