Perhaps that is so, but if you are dragging a monitor around with you it's usually work related and the monitor will be between 20" and 30" in size. When packed in it's box that's quite a sizeable piece to transport as hand baggage, even in F or C, more so if the flight is busy. Laptops go up to 17" in general, so it won't be smaller than that (i.e portable). Mind you on the African routes 'everything but the kitchen sink' seems to be the norm