I'm not sure Deadly Creatures is such a good example, not because it bombed, but because while the game has some nice production values it is not the kind of game that oozes AAA quality.
One of the other questions I find myself asking, is would this game have found similar or more success on other platforms? Many of the games that fans of other systems point to as third party flops (NMH, BB (for a time) ZW) These games are quirky and niche to a degree and I for one highly doubt any one of those games would have found comparable or greater success on other platforms.
Rol hits it on the head actually, if quality wasn't an issue, why is it Nintendo is able to constantly tear up sales charts yearly? With games that sell at an UNBELIEVABLY high rate? Brawl, Kart, Wii fit, Galaxy etc. Games like AC, and the once hated (still hated?) Wii Music. Brawl and Kart aren't even a year old yet and one is a couple hundred thousand away from becoming the highest selling racing game ever. Brawl is on its way to double digit millions.
Why take a look at a game like carnival games exclusively? It has sold 1/3 of what Brawl has, TP on the Wii sold 5 million, there are other games that sell on Wii that are high quality, not just the low quality games that get singled out. Heck on PS2 God of War 2 was outsold by spongebob did that stop other M action games from appearing on the Ps2? No.
When fans of other systems start that nonsense talk of "Third Party games don't sell on Wii" I have to ask, where is the same/similar effort on the Wii to make a fair comparison? I mean really most of Wii's third party support has been shoddy ports and not so shoddy ports, most of the time of old PS2 games. PS3's version of Bioshock didn't even crack 500k, I guess ports that come nearly a yr late don't do well on any platform. But I digress.
As I once said in a OP of my own (giving myself a shout out here) The idea that third parties won't find the Wii habitable is a stigma created by Nintendo's competitors.
Bet between Slimbeast and Arius Dion about Wii sales 2009:
If the Wii sells less than 20 million in 2009 (as defined by VGC sales between week ending 3d Jan 2009 to week ending 4th Jan 2010) Slimebeast wins and get to control Arius Dion's sig for 1 month.
If the Wii sells more than 20 million in 2009 (as defined above) Arius Dion wins and gets to control Slimebeast's sig for 1 month.