I agree TN is never going to suit me but this guy is a bit of a multi monitor 120hz evangelist. Some of his setups have been frighteningly awesome. Those are, I think, 1440p TN monitors however. Check this one out.
http://www.youtube.com/watch?v=CBj3RfMGOV0Unfathomable amounts of money poured into these, including a 5P setup. The going trend for these types of extreme setups seems to be using the 3d function strobing effect of the back light to eliminate lcd blur.
Also from my experience TN panels have improved somewhat over the years and aren't as bad off angle as they once were (colour I don't know however). Might be fine from the right position in a dedicated gaming PC.
Not something I would invest in but I would love to see in action.
3P is very high res and the ratio offers a larger field of view inside games compared to a single 1600p or Quad HD at a smaller cost. I agree part of the appeal of these setups is an economic consideration (as crazy as that sounds) but you could get the same effect by sitting closer to a cropped 30" or larger, loses a lot of its effect though.
If 4k lands with any real adoption we might start to see the lines blurring between monitors and TV's even more.
Shame they'll largely be 16:9 and won't have the impact or real estate of eyefinity setups.
PLP is my ultimate setup aswell and I like the idea of working with desktop apps in this setup. I have difficulty going back to a single monitor, I'm so used to spreading everything out at this point. At least that 4k monitor is 10bit but 5 grand? Yeesh, On principle you would have to get a bigger one just to justify the price. 50" could work out as cheap down the road just because its a more competitive market for that size tv.
Serious big boys toys, makes the price of a Dell 3014 seem pedestrian.
Don't get me started on how useless a 4k tv is in the living room however...