there's no need for Nintendogs, and btw, get a taste of Ubisoft's "bad" dog game:
not as bad, if you think Ubisoft's dog game for Wii sold 0.57 till now just in America and cat game sold 0.47 in America, maybe it's a reason Nintendo does not bother to make a pet game for Wii
also, if you see these screenshots (which are from the upcoming "Petz Sports" game from Ubisoft) you can see they put effort, although i'm not sure these are from Wii or PC version, they are great!
never had the chance to try one of these game, maybe "Petz Sports" is a chance, since it looks nice
don't mind my username, that was more than 10 years ago, I'm a different person now, amazing how people change ^_^