It's not just 3rd parties that can't compete with Ninty, neither Sony nor MS can in terms of game sales
http://vgchartz.com/games/index.php?page=1&results=50&name=&console=&keyword=&publisher=&genre=&order=Sales&boxart=Both&showdeleted=®ion=All&alphasort=
21 of the top 25 selling games are published by Ninty (the sims, GTA * 2, GT fill the other 4 spots)







