My son gave me
this M-Edge case for Christmas,
It appears to be on sale for $20. It uses a neat silicon rubber attachment system. My AuraHD fits perfectly. They mount the device on a stiff board, as part of its built-in stand, but the board also adds to the protection from damage from twisting. A likely cause of substrata cracking of the screens. The rest of the case and the way it is attached provides a lot of protection in a fall or from shifting in a bag/backpack. You can fold it all the way open and the case edge is easy to hold.
Luck;
Ken