We do the same thing! I love chicken stock, but I hate chicken meat, so going to the pet store and buying bags of necks and wingtips is the way I do it!
Hehehe, it's so hilarious... I just wanted to share. If you ever need soup bones, check out the dog food! I just got a huge bag of meaty neck bones that were intended for dog food, and man my stock smells excellent.
It amuses me how making our own stock has gotten to be such an unusual thing, the bones are sold for dogs... XD