I agree with Pete, something a little bit different. That would be really cool, I love that gray.
Its probably because of a surplus build up of some bit and pieces they have acquired cheaply or brushed up from assembly [], package it and sell it as a limited edition. Sorry a nearly limited edition you have to buy the additions too, so its a special super duper limited edition model.
Who's thinks of these things at Subaru, surely they must do market research and see what people want and say. Ahhhhhh! sorry forgetting one thing, $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$