Sure, Halo 3 made $170 Million (U.S.) in it’s first day, but they did put a considerable chunk of change into the development.
Apparently, developers are spending over $15 million just to get a game finished - Marketing and all the other crap is added on top of that. No idea what Microsoft / Bungie spent on advertising, but I’m sure it was a mega-crap-load.
I stole this information from www.digitalspy.co.uk. And I did it for you :)

















