I wish (mine wasn't ordered with the option). I want one cause the wife and I are intending to use my wagon to go camping in, and I've been looking for one so we can travel with/store our gear up on the roof instead of on the ground while we're using the back as a bed. Let me know if you decide you don't want/need it!
Edit: I'm in TN, about 25 miles East of Nashville out I-40.