Just figured I'd make a list for the benefit of quick reference for all those arguing in this topic. This is a list of every game Nintendo has published to date for the Wii and DS, as well as all games they have announced they are publishing in the near future (courtesy of Gamerankings). Casual only will be red, core only will be green, both will be blue:
DS:
Advance Wars: DS
Animal Crossing: Wild World
ASH: Archaic Sealed Heat
Big Brain Academy
Brain Age
Brain Age 2
Chibi Robo: Park Patrol
Children of Mana
Clubhouse Games
Custom Robo Arena
Diddy Kong Racing DS
DK Jungle Climber
DS Air
Electroplankton
Elite Beat Agents
Final Fantasy Crystal Chronicles: Ring of Fates
Flash Focus: Vision Training in Minutes a Day
Hotel Dusk: Room 215
Kirby Squeak Squad
Kirby: Canvas Curse
Magical Starsign
Magnetica
Mario & Luigi: Partners in Time
Mario Hoops: 3 on 3
Mario Kart DS
Mario vs. Donkey Kong 2
Meteos
Metroid Prime Pinball
Metroid Prime: Hunters
New Super Mario Bros.
Nintendo Magic
Nintendogs
Picross
Planet Puzzle League
Pokemon Dash
Pokemon DP
Pokemon Mystery Dungeon
Pokemon Ranger
Pokemon Trozei
Polarium
Professor Layton and the Curious Village
Star Fox Command
Sudoku Gridmaster
Super Mario 64 DS
Super Princess Peach
Tenchu: Dark Secret
Tetris DS
The Legend of Zelda: Phantom Hourglass
Wii:
Battalion Wars 2
Big Brain Academy: Wii Degree
Disaster: Day of Crisis
Donkey Kong Barrel Blast
Endless Ocean
Excite Truck
Fire Emblem: Goddess of Dawn
F-Zero X
Kirby Wii
Mario Kart Wii
Mario Party 8
Mario Strikers Charged
Metroid Prime 3
Pokemon Battle Revolution
Project H.A.M.M.E.R. (may be canceled)
Super Mario Galaxy
Super Paper Mario
Super Smash Bros. Brawl
The Legend of Zelda: Twilight Princess
WarioWare Smooth Moves
Wii Fit
Wii Play
Wii Sports
Wii Music
Even if you want to consider some of those that I listed as both demographics casual, there is no way you can possibly twist that list to say Ninendo supports more causal than core gamers. Hell, even if you considered EVERYTHING in blue casual only (which is clearly not true at all) Nintendo would still be making twice as many core games, and the truth is that even most of those games listed in red can be fun to core gamers as well. I enjoy Big Brain Academy on the DS. So can we stop with this ignorant bullshit about Nintendo not caring about core gamers once and for all?
Before someone starts bitching about these games not all being made by Nintendo, they are all PUBLISHED by them, meaning Nintendo put their own money into creating and advertising these games. If they didn't care about the core gamer, they would not put money into them at all.
