And it's a demonstration of just how much cold air is falling out when the door is opened. While less convenient, a chest freezer will do much better at holding the cold air even when opened.
While visiting rural northern Namibia, a Damara tribesman I was talking to asked me where I was from. Upon hearing that I was from a cold Northern part of the world, he commented that it must be great that half the year I didn't need to run my freezer.
I just stared at him, not knowing what to say. He stared back at me for a while and then started laughing. Then I realized he was screwing with me, and I just said, "Touche'".
