Free: Contests & Raffles.
I always do my own so its done perfect. But son had his elk done recently $.95/lb brought in boned and very cleaned Elk meat was less than $100 cut and ground. You will cut cost in half by using gutless method and boning meat - leave all the bones in the field and clean excess fat, sinew, bloody meat off. Of course if there is a minimum charge that won't save you with a deer, might with an elk.
After they got all their jerky and pepperoni sticks along with the standard burger and steaks it was $675+ ouch