When it comes to actual numbers, Microsoft ain't talking. But Advertising Age ran some calculations and has come to the conclusion that the advertising for Halo: Reach will be the most expensive ever made for a Xbox-related game. The company spent $6,5 million dollars on doing advertising for Halo 3, and $12 million in total on Xbox 360-advertising last year.
Then again, there has been Halo-games sold for more than $2 billion dollars since the first Halo: Combat Evolved was released. That number is about to get a whole lot bigger when Halo: Reach is released in about three weeks...