From official rules:
PRIZES AND APPROXIMATE RETAIL VALUES:
(1) Grand Prize - a Game of Thrones
branded
Xbox 360 console (ARV: $250); (2) First
Prizes ? a Game of Thrones Season 1
and Season 2 DVD package (ARV: $119.98 per pr
ize). Limit one prize per person or
household.
They value the xbox at 250 USD which considering all the colorwares get valued at 1000 USD or so by the comps seems like this one may very well just be a unique sticker on a regular old xbox
