How expensive are pygmy goats to keep?

Pygmy goats are inexpensive animals to keep, especially wethers or does not being freshened. I feed my non-breeding animals only 1/2 to one cup of feed per day and grass hay. Does that are nursing get 4 cups of feed a day and alfalfa mixed with their grass hay and growing kids get alfalfa in a creep feeder. They also have access to loose mineral salt and get selenium crumbles on their feed every day. Pygmy goats are very healthy animals for the most part and I have rarely had to take them to the vet.