I opened a few, and I have to say that with most screens, the plastic case is nothing more then decoration. AC inlet, video inputs, even VESA holes are all in one closed metal box, that in some cases actually looks pretty cool without plastic already. 2 things hang loose most of the time: pcb's behind the control buttons, and speakers. The first is very handy, since it allows you to tweak a behind glass mounted lcd, the second is easy to disconnect as you don't need the speakers most of the time.
The example above looks worse than what I experienced. Open AC inverter and open image circuitery is not what I have seen.