The casual titles overshadowed it no doubt.

piracy is what killed those games especially cod and gta

Why CoD and GTA specifically?

I actually think it was a combination of the first 4 choices you listed.

They were overshadowed by more casual titles.
They definitely werent pokemon, thats for sure.

Poor distribution.
A lot are uncommon to rare now, even on ebay.

Lack of word of mouth or advertisement.
This.

Piracy.
Also definitely this.

Piracy was a big problem for Nintendo for both Wii and DS. And it was bigger on hardcore games.

Not sure why.. I didn't pick up some of these games either.. : ( Though there were a ton of DS games. Maybe too many... A lot of great games may have ended up drowning in the sea of them...

cause they didnt print many. most game here were sold out on preorder or first shipment and never got replenished.

Market Satuation? niche in appeal?

Golden Sun is the only thing that should have sold better on that list, I think it just arrived at a time where the DS is dying software wise. It deserved a remaster on the 3DS or a collection re-release

Fire Emblem only blew up with the 3DS, prior to that it always had small sales.

World ends with you didn't have a huge budget (i dont think any DS games did lol), 700k was probably decent considering its a 2D sprite RPG and new IP with a strange battle system

Again other then Golden sun I think the games only performed poorly when compared to casual titles or Zelda/pokemon/Mario

Wow, I love 999 =O

Does anyone here played "Lost Magic"? Such a great game too

Lost Magic

Global Total as of 04th Apr 2015 (units): 0.12m