The marketing and development budgets come out of the same funds, therefore one can be increased at the expense of the other.
As far as your figure on the "average" cost of game development, I can't find anything to support it.
Ubisoft have said that their average budget for developing a PS3/360 title is $18M-$28M(Link [http://www.gamasutra.com/php-bin/news_index.php?story=18389]).
This is significantly higher than the $10M budget that IGN reported was being predicted in 2006(Link [http://games.ign.com/articles/708/708972p1.html]) but still not up to the point where $1.5M is insignificant and nowhere near the $100M average you suggested. Do you have some kind of source for that?
As far as your figure on the "average" cost of game development, I can't find anything to support it.
Ubisoft have said that their average budget for developing a PS3/360 title is $18M-$28M(Link [http://www.gamasutra.com/php-bin/news_index.php?story=18389]).
This is significantly higher than the $10M budget that IGN reported was being predicted in 2006(Link [http://games.ign.com/articles/708/708972p1.html]) but still not up to the point where $1.5M is insignificant and nowhere near the $100M average you suggested. Do you have some kind of source for that?