Just a quick response. One is like others have said Gaming is a luxury, and not important at all in the grand scheme of things. Just a past time.
However, lets take Last gen as an example; Many media outlets as many here will remember, Wii was always being stuffed into a different catagory, whether it be the casual gamer shtick (shit) or non game talk etc. But everytime NPD was released, Nintendo was reported as being nearly wholly responsible for for all growth during that gen. So When it was convenient, Nintendo was a part of the games industry, but when it wasn't convenient, they weren't discussed as being a part of the games industry.
But I digress, my point is this, if we take Nintendo's contributions last gen away, last gen looks incredibly bleak. Are we to believe that a large % of Wii owners would really be interested in PS3 or Xbox? Or a PSP? The decline would have been massive, and losses couldn't have been regained or softened without a Wii in the equasion.
Additionally, the fact the Sony and M$ are so dependent on third parties, means that any corporate conglomerate could enter gaming if pockets are deep enough. Sony nor M$ have really been anything more than platforms that subsidize losses for thirds to have a platform to sell on. Nintendo remains the most successful games company in the world, despite the crappy decisions made in the last couple of years, you cannot just look at these things in a vaccuum.
Bet between Slimbeast and Arius Dion about Wii sales 2009:
If the Wii sells less than 20 million in 2009 (as defined by VGC sales between week ending 3d Jan 2009 to week ending 4th Jan 2010) Slimebeast wins and get to control Arius Dion's sig for 1 month.
If the Wii sells more than 20 million in 2009 (as defined above) Arius Dion wins and gets to control Slimebeast's sig for 1 month.