New Bumper?

My 2010 scion xD's bumper got scratched up after some A hole pulled in or out of a parking spot and scuffed it. I am wondering if I would be best to replace it or try to repaint this one. There are no cracks or dents in it, but there is some paint missing. The scratches are ~6 inches long and ~6 inches tall. It is magnetic grey in color. I would appreciate any advice. Since I plan on driving the car for another decade, I would like to get it fixed. Thanks!