Interesting video. But a few things stand out. First, the guy making the video wears glasses. So his vision isn't pixel-perfect to begin with. Second, even perfect human vision isn't good for much more than 1080p at standard viewing distances. HD can be okay for desk monitors (when we're viewing much closer), but the moment you add motion to whatever you're watching, your visual acuity drops by about half. That massive 4K screen you have on your living room wall? Looks great with a static picture or when standing 2 feet away. But sitting on a couch 8-10 feet away from it, watching a movie? Yeah, it might as well be a 1080p screen. Your eyes can't tell the difference. Not really. I sit at an 8-foot wide desk (I built myself), and I run 3 32" LG HD monitors. And I occasionally play games. They aren't the best monitors, and maybe have a bit of motion blur. Can I REALLY tell? No, not really. The monitors each weigh about 19 pounds. So that's nearly 60 pounds of monitors. On the lighter side of things, a CRT monitor of this size would weigh about 120 pounds, and possibly a lot more if it's a good quality monitor. So, maybe 400 pounds of monitors on my desk? That's ridiculous. I'll take the flat panels any day. They look and work great. Also, PRO TIP: If you run a large array of monitors (3 or more), use a TRACKBALL instead of a mouse. Takes up far less room when moving the pointer across the screens, and can be much faster side to side. I use a Kensington Slimblade Pro and I've upgraded the bearings to silicon. Works great, worth every penny (once you upgrade the bearings).