If microsoft bought Nintendo it wouldn'y be a buyout like what happened with rare. Microsoft would get out of making games, they'd still publish games from their children. Nintendo would essiantially be a second party to whatever system microsoft has. And nintendo would have to have a huge say in the system. Most likely microsoft would be a figurehead and nintendo would control everything in the microsoft videogame lair. Microsoft would love it because they would learn how to become profitable;seeing as nintendo is the only profitable hardware manufacturer in videogame history.