I bought a pi zero and I plan to mount it to my monitor somehow. The monitor has a 4-port, powered USB hub to which I normally have my mouse plugged in (long story short, motherboard won't post with the mouse attached so I keep it on my monitor where I can easily detach at boot). If I move my keyboard there as well and get a micro USB to USB-B (or adapters) I can just use the zero as a desktop alternative for low-power stuff (such as document editing. I'm a college student, I do essays). I have a 32GB flash drive that I plan to connect to the hub as well, so with the 4th port being power to the pi I'm all set. Biggest issue is that the monitor takes DVI and VGA, and I'm already occupying the DVI so I'll need an HDMI to VGA adapter. To power on the pi all I'll need to do is plug it into the monitor, and then I'll need to swap over the hub to it. That's far more power efficient a device than my desktop, and I happen to like the planet.