This falls under the same category as: Playstation2's, Gamecubes, Ipods, and any other "standard" priced electronic.
Retails price: $179.99 across the board.
Online retail price: $179.99 across the board.
The only way you'll find a "deal" is used on ebay, or "refurbished" from Gamestop or EB Games.
Or you could try a spam-pyramid-scam thing for a $30 Xbox...which just sounds fishy.