A possible reason 3rd parties ignore the Wii...

[Kenny]

BMaker11 said:

Squilliam said:
Its not that third party developers ignoring the Wii, its the developers that we care about, making the games that we care about that are ignoring the Wii. So no developers in general aren't ignoring the Wii, but the ones which count are.

of that, right there

 

I would take it one step further.  The developers we do care about aren't ignoring the Wii (Ubisoft and EA), but they are not producing the games we care about for it (see: EA and the All-Play series, Ubisoft and the Petz series; hardly first string third party games, are they?)