Would be boss, 4K$ down the hole :D 4 of these for folding could be used in order to yield massive PPD, provided you could power all of them at full load.
Doesn't mean they pay to have the perfect pixel matrix from the manufacturers though. Just means they're the first to bring 4K to market and are trying to get rich people to shell out cash for an unproven technology ;) Plus I don't know this company all that much, and wouldn't buy any monitor...
That's more chances for dead pixels in my book, I just upgraded to a 2560x1440 monitor and I had to send it back for dead pixels as soon as I opened the box -.-'
The thing is, with current dead pixel policies of monitor companies (which suck hard), it's going to become more and more difficult...