I bet those vaporous people you speak of with 80" tv's are sitting far away from the screen if they can't perceive the difference...
yes, 90% of the worlds population are incapable of seeing a difference, but you aren't.
... and remember, 80% of drivers rate themselves as above average drivers too.
... and music can only really be enjoyed by tube transistors, everything else is too harsh.
My point is that "______phile" people always perceive some minute difference that no one else can, or cares to look for.
I think a Retina display is another "solution" looking for a "problem" to fix.
I think it's more bother than it's worth..... but visualphiles see the big difference no one else can.