who wants to create a business out of advocation the tie in of games and adverts? -
I know UGH
but that way you have free and $$$
Imagine how much would MR DOOM III drinking some unknown (at the moment) drink that wants to gain market share for power ups!
Now that could be worth millions $$$ in advertising, add some other items, and you will have games littered with products from real life...
Release the game for free, assuming it has real and good gameplay, eventually people will not mind it in the same way you do not mind the posters on football matches, and even less than adverts on the TV ( assuming that the adverts like these only run while new level is loading)...
and voila... all we need is an agency making ties between game developers and "real" product makers, and voila... $$$ and free games.
I am sure that few million copies of a game sold would make up for a substanitial advertising revenue stream.