That's beautiful.
If I had a sealed DWII it'd be in some sort of display case thingie.
This reminds me of the time I found a copy of Glib (2600, also ZOMG RAREZ) at my local flea market. The seller had a random assortment of 12 games in a box. Most of them were 7800 games and one was a C64 cart (which I bought). I think there were like 3 2600 games and one of them was Glib. It's odd cause like you said, you usually find rare Atari games with many commons.
Have you seen the incredibly rare, valuable, and fugly
MenAvision Atari game?