i heared that most full games on the hd consoles need a 30-40 million $ dev budget, and if you want to make a real triple a title then prices go up to more than 50 million.
to break even with a game that costs 30 million you will probably need 1 milion copies sold. with 70-100 million dev costs like gta 4 you probably need to sell 3-4 million copies to break even on the game alone.
this is what makes it really hard for triple a titles to stay single platform, and i really think that most 3rd party hd games will be multiplat in the future.







