So I've been thinking about cases by various suppliers. Some are relatively thin, and therefore possibly not as protective as I'd like, but the covers can be set to be used as a stand (think MoKo, Cover-Up, Speck, etc.). The others are rugged (think Otterbox or Seidio), and have a separate piece which doubles as a cover and stand, but seems to be way bigger than it needs to be (the tray/cover, not the actual case).

Why has no one made a single rugged case that that has a built-in cover/stand? It's not exactly a difficult thing to design (I can picture it quite simply, and would make it myself if I had access to the tools). Is there such as case out there that I'm missing?