IIRC beef tenderloin at Costco runs around $95 which makes a 5lb tenderloin about $19/lb. So the goose isn't that expensive/lb, but all of the tenderloin is usable and would yield about 8 big filets + the tip + the butt. So about 14 or 15 meals.
Trying unsuccessfully to talk myself into cooking a goose.
Compared to dartagnan's site the store price is a bargain