DVI/HDMI can't deliver power. DisplayPort and USB3 can. I think that'd be a big factor for people. I'm almost ready to buy this thing: http://www.amazon.com/ASU

DVI/HDMI can't deliver power. DisplayPort and USB3 can. I think that'd be a big factor for people. I'm almost ready to buy this thing: http://www.amazon.com/ASUS-Portable-USB-Powered-Monitor-MB168B/dp/B00FE690DI/ref=sr_1_1?ie=UTF8&qid=1405911803&sr=8-1&keywords=usb3+monitor http://www.amazon.com/ASUS-Portable-USB-Powered-Monitor-MB16... because I don't want to haul around another power brick for a second monitor