Depende yung dual display sa pangangailan ts. If programmer ka na need mo ng 1 display for coding 1 display for output mas mabuti yung dual display. Pero kung wala ka naman gagamiting function sa pangalawang monitor mo, save mo na lang yung 5k.
Sakin naman, gamit kong second monitor yung old Samsung Tab 2 10.1" na tablet through spacedesk. Pero minsan laptop with spacedesk and/or mousewithoutboarders para tipid tipid lang ehehe