Well, the reason I say this, is that you can go EITHER way with these boxes. I use them Copper as well, but for instance, if you are in a building that is pre-wired, you can jump on the fiber line, while you could NOT use the copper, as these systems dont work with ethernet systems (even gigabit)
The Magenta boxes give you that extra ace in your pocket. And they also have the loop through on them for a local monitor like the thinklogical boxes.