To buy or not to buy, that is the question

I am in the process of placing an order for some 15mm figures from Khurasan, and I came across an interesting pack of figures that really beg the question: to by or not to buy.

It has even caused me to pause in my shopping to make this post.

Khurasan has some 15mm scale Zombie wolves. I like them, but the dilemma I have is do non-human zombies have a part in our games?

Khurasan's Zombie wolves (direct link from their web site)

I can see them fitting in with the right background. For instance, rather than have what ever has caused the zombie plague to be able to cross infect species, a mad scientist created two viral strains - one that affects humans, and the other canines.

"Ambush Z" has rules for zombie dogs, but they don't really go in to much detail, so I would have to flesh out the idea to make it work (yes, pun intended).

Anyway, back to the original question - to buy or not to buy?

 One pack is $4.99USD for six miniatures, so I would only really need one pack, and I could use them for fantasy games should the need arise.

 I might get them and hold them in reserve in case my Aussies need messing with at a later date.

 What do you think? Yay or nay?