I don't think the Conduit numbers (71k) even cover the cost of the advertising in the US.
There were a significant number of TV adds.
The marketing budget was definitly in the 5 Millions$ + range...
That might explain one of the complains you often see on these boards, the one about lack of marketing/Tv adds for Wii third party games.
If sales can't cover the cost of TV adds, you're better off not doing them...