Thanks for the reply? 
… No drooling going on here… In fact, I am probably more of a sceptic than most about 4K. I will agree that for small screens such as laptops, tablets, and phones, the 4K/Retina thing is just silly. For TV, where you are typically much farther from the screen for viewing, unless the screen is very large (60"+) there is also no real discernible difference AND even if there were, there is not much content available anyway. For computers, with a screen in the 32" range and a viewing range of, say, 3 feet, there is a difference, but it is really more about fitting more stuff on the screen (i.e. more pixels) in applications like Cubase and Vegas Pro, etc. Of course, it needs to scale nicely to be much help, hence my original question…
The link you provided is really a discussion about 4K TV, not computer workstation displays.