My boss wants a low-profile monitor for his home office. An arm with a VESA mount isn't ideal. He wants to use a desktop computer, but the monitor shouldn't block the speakers positioned in an arc in front of his desk. I don't know if he plans to have the monitor in front of him or to the side. I suspect it will primarily serve as a display for a music server doubling as a Facebook machine.
So decent visibility would be nice.
I found a couple USB-powered monitors, and he seemed keen on the idea. Consider items like the Asus MB168B and the Lenovo LT1421. They are petite and have kickstands, so as to keep them out of the path from speaker to ear. But they appear to be designed for portability, as a second monitor for a laptop. The quality is probably pretty low, the price is high, and it's hard to find decent reviews on them.
I've heard some standard desktop monitors come with kickstands, but a Google search just finds a lot of discontinued products. And I worry about the viewing angle if they are cheap TN panels.
I think 1080p would be good for a monitor around 18-19", or perhaps 1366x768 if the monitor is somewhere around 13-17". If it is bigger, a bigger angle would be necessary to keep it out of the way, but then I worry about viewing angles.