Middle Atlantic is not cheap but it works and looks great. But I'am sure all your gear wasn't cheap, so why would you treat like it was.
The heat from all your gear in a box in your wall will destroy all your equipment over time, With the thermal control on the rack your gear is never going to overheat.

Here is a shot of my rack with the rsh shelves and I love the wow factor when people see it for the first time.

Best of luck with your theater