If I had a better setup, I wouldn't mind doing it. As I have to do it now, 2-3 birds take what seems like forever. If I had a more convenient setup with killing cones, a level spot to set up the scald pot and work table, plus a well drained area near the hose, where I didn't have to search for all the supplies every time, it wouldn't be too bad. Under roof, of course. Oh, and a tub picker in my fantasy world... I 'could' have all this if I'd process birds on my carport, but I'd either have to catch them and keep them in crates til it was their turn, or do a lot of hiking back & forth from the chicken area to the house. And I'd have feathers outside my kitchen door.
The Amish guy charges $2 a bird.