Ok I might be too sentimental about my dogs but I have had them for 7 and 8 years at the moment so $1K limit (what many are suggesting) seems a bit cruel to me.
Well, I don't have any kids so the perspective isn't probably the same but my personal limit would be somewhere +$8k if the dog has as much as 10 years left. Hell, I might even sell my car for a dog.
(We have insurance for both of our dogs which costs approx. $700 per year (for both))
EDIT: Most of the typos