I'm almost thinking I'll jinx it if I post here!
I'm assuming you mean costs associated with a greyhound that would differ from another breed of dog. You're going to have food, bed, chews, possibly training and normal/regular vetting with any dog. But to date, Maggie has been very healthy. In fact, in the 4 years that she's lived with us, she has been far less expensive in vet bills than the mutt pup we've had for 2 years! Hope this helps.