The success of Nintendo non-games dwarf the success of REGULAR games by third parties except Square Enix.
So now, not only do third parties have to contend with Nintendo's franchises like Pokemon, Mario, Kirby etc. for good sales on the handheld (since multiple companies have stated Nintendo is the biggest competition on the same system) but now they have to contend with a new dearth of "non-games" for lack of better terms by Nintendo.
This could, should, and would influence 3rd parties to wwant to try and make their own "non-games" as well to try and catch onto the success of the DS if not for one thing:
3rd party non-games aren't nearly as threatening to sales as Nintendo's are.
Nintendo's "OTHER" games sell in the upper-tier of sales: around 700k and up.
Third-party "OTHER" games with the exception of Tamagotchi and (I think it's a non-game) Love and Berry Collection, sell for about 100k - 200k, just in line with 3rd parties real games that sell.
I still think it's worrisome that normal BOOM franchises or games that should be sure hits in Japan are doing poorly (The BOOM amount of 300k for old times sake) on the DS. The DS is the fastest selling system since God knows when with what, almost 14 million userbase?
No matter what the quality of the game would be, a Tales of game should have no problem selling 300k, just like Final Fantasy easily sold it.
No matter what the quality of the game would be, a Winning Eleven game ON THE DS should have no problem selling, I won't even say 300k, but TWO HUNDRED FREAKING KAY but it cannot and that's worrisome.
No matter what the quality of the game, you woudl think at least 300k of those 14 million DS owners were starving for an RPG other than FF and Pokemon... yet they refuse to pick up titles like Magical Starsign,
This is probably not the problem, but I'm going to introduce this scenario to play devil's advocate, because I slightly agree with kisaki even though he trolls. Say Japan has a group of casual/hardcore gamers that enjoy the DS and enjoy titles like Tales/Winning/RPGs, but these group of "non-games" came out and they got swept up into the hype to purchase a few of them (Kanji Quiz DS: 239k, Common Knowledge Training: 500k). They enjoy them, but they tire quickly and they go back to buying regular games (Mario BBall 3vs3: 348k, Harvest Moon: 219k, Tales of Tempest: 130k, WE: 113k), but all their friends talk about and all Japan talks about are the non-games. Not wanting to feel left out, the semi-casual/real gamer continues to buy non-games and may be slightly hesitant to purchase a REAL Game.... no-one cares for it and no-one has it to enjoy it with him AND these REAL games aren't turning out to be as fun as he thought (Magical Starsign, Mario BBall, Harvest Moon feels the same, TotT is bad, WE is ugly graphiX).
So now he purchases non-games a little more often than games.... and so do others... so now we have non-games selling more than regular ones, and the companies don't feel as strongly in putting their REAL games as fast on the DS as they would a non-game. Thus, complaining and worrying starts on GAF.
But that's just a scenario