Costco sells both raw ... or about 1 pound of bone-in meat per person. This means that a bone-in rib roast with about five bones will feed at least 10 guests, whereas a 5-pound roast is suitable ...

Costco is an excellent option for high-quality meat at a lower pricepoint. Bone-In Prime Rib: A bone-in roast will typically cost more overall because it includes the weight of the bones.