ShopMyExchange has the Yakima Loadwarrior Rooftop Cargo Basket for $205. No tax, appears to be FREE SHIPPING (I tried up until the CC stage of purchase). The exchange is only available to customers with a military affiliation.
Normal price is $349, for a savings of $144 off, plus tax savings.
Someone buy it! I wish I had a roof rack!
Edit: All their Yakima stuff is on sale -
Skybox 16 $340
Rocketbox Pro 14 Cargo Box $300
SoftTop Cargo Box $55.97
DryTop Cargo Bag $111.20