As a multi-monitor user for over two decades, I can say that VESA-compatible arms are an essential part of my workstation setup. Since I also have back problems, getting my screens up to a proper ergonomic height (well above most built-in monitor stands) is a big deal. And speaking of deals, you can pick up your own VESA-standard monitor arm for just $22 on Amazon. These mounts are a pretty basic design you see just about everywhere, but usually at around three times the price. A steel bar attaches to a flat desktop, with either a sturdy clam or a drilled-through bolt (which can work great if …