I've long appreciated your valuable, and knowledgeable input on this forum. That being said, the posted article was written by someone with real experience with displays, who lived with the 65 inch set for a month.
And in response to the previous poster, the writer did appreciate the excellent contrast, blacks, etc. of the Samsung, while at the same time commenting on what he felt were the other possible differences between 2K and 4K sets.
And lastly, I could see the difference between Laserdisc and DVD, immediately.
I'm looking forward to 4K, and will purchase when affordable, larger emissive display options become available.