OK so I was looking for a dog that I could buy. Well I found one an his name is Vigilance. He is a good fighter and all but he is FUGLY. I was looking for a dog that looked like a wolf or german shepard but all TAME dogs are the same dog with a different name. It pisses me off that Bethesda didn't add different breeds of dogs. I stillapreciate the majesty and awesomeness of the game but if I could name one problem of the game the only thing that comes to mind is that. Does anyone agree with me? Does anyone want this in the DLC?
EDIT: Wow I forgot that it sensors stuff
I never had interest in a dog in real life (more a spider/snake/lizard/etc) kind of person myself, but these kind of options are good in games. I would have like to see more animals you could buy - owning dogs, hawks, horses etc certainly would fit the feel of the game (the Romans were quite fond of their exotic beasts, having them around was a sign of social status). Such things were a source of pride IRL amongst cultures like the Nords/Empire.
Here there could be even more options, due to the fantastical nature of it (if I could have a spider as large as a dog as a pet = awesome!).
But it isn't a huge complaint (or a complaint at all for me), just one of those "wouldn't it be cool if..." things.
To be honest, I have precisely zero interest in buying pets in the game. If I wanted to mess about with fluff like that, I'd go and play some crap like
The Sims.

Same goes for marriage too!
Silly, options well implamented in an RPG that a player is under no compulsion to use or utilyze aren't a bad thing. You don't want to buy pets, then don't. Presto! Like magic!