I went the expensive route because I wanted it to be covered and protected and as thin as possible. I just bought a ZeroChroma Vario SC - just released this week. It has hundreds of different positions vertical and horizontal. I also got the smart cover for it to protect the screen when it's in my purse. I wanted t sleep feature b/c sometimes i forget to turn thisngs off. Way more than I intended to spend for a case, but i wated the most protection while weighing almost nothing.
And additionally it will work with any wireless keyboard.
And additionally it will work with any wireless keyboard.