Urg, I hate it when anyone gives me some pretenious speech about books being so freakin' great. Just because you prefer a specific medium for storytelling doesn't make it better. In fact the bright colours normally associated with kid games can actually help develop creativity - not to mention many multiplayer games promoting teamwork. I actually have the ability to do math's pretty quickly compared to others in my class at school - and I was the one who played the most games growing up.
There are countless logic puzzles in Zelda, a math's segment in Mischief Makers, brain training etc all made to reward smart and quick thinking. The horde of recent multiplayer games also pushes people to communicate better since team work is required for some multiplayer games to work at all. Theres also D'n'D games like Neverwinter Nights were it's possible and incredibly easy to work out the math's behind the game and use that knowledge to your advantage (such as working out your % chance to hit a foe).
Or I could pick up a book and spend 10 minutes just having the scene described to me. Maybe theres a reason why kids prefer one format over the other. What's more is that most books (far worse than games) tend to be repetative, cliche and just plain stupid in some cases. Despite what many people think being an author doesn't automatically make you smart - it just means you got published.
When I read "classics" such as Catcher in the Rye or Dracula I actually find the books dull, contradictory and just being silly. If people actually read the Dracula book they would see quite easily that by modern day standards it's just the plot to a crappy horror movie. Or Catcher in the Rye - where you can read about an Asshole being an Asshole and then complaining when no one likes him while he talks about random crap not actually relevent to the story. While some may disagree with me you the Lord of the Ring's movies where actually better than book (I can't count the number of times Frodo and Sam didn't look like they could make it over that next bit of terrian...then they did....yay?)
Why does buying a book come with a free superiority complex and a need to put down other mediums? Well-read must be latin for "Idiot".