Right now you can pre-order the game from Amazon.com (and other retailers) for only $39.99. This is a far cry from other next-gen games that usually release at $59.99 MSRP.
Similarly another Rare title releasing this fall, Banjo Kazooie Nuts and Bolts, will be priced at the same consumer friendly $39.99 and is also available for pre-order. As a bonus, if you pre-order it now you'll receive and XBox Live Arcade code to download the original game free and earlier than everyone else. While Banjo doesn't have any confirmed co-op, we have a sneaking suspicion you may see something announce soon on that front. Stay tuned!