Target B&M has XBox Live 2.0 Kits on sale for $34.98. This includes the full Tetris Worlds game, and Moto GP demo. Other retailers including Amazon are selling this kit for $49.99, so save $15 with this deal. It appears to be a nationwide deal. Also, the XBox Live 1.0 Kits are supposedly selling for $24.98 in-store.
Credit goes to Wag over at AT for the deal.
XBox: XBox Live 2.0 Kit - $34.98