I need some advice/help with a dual monitor question. I have the Dell Ultra HD 4k Monitor P2715Q 27-Inch Screen. I am considering buying a 2nd one so that it can be placed in a vertical position. For those who use dual monitors, do you buy the exact same size, or do you buy a smaller size for vertical positioning? I am trying to think of the aesthetics as well. The plan is to keep one vertical and one horizontal, but to also have the ability that in the future I might switch them to both horizontal (depending on the project).