I bought my Dillon 550 in 1991 and now it is 24 years old. It has probably loaded about 7,000 rounds per year counting other people who come over and use it. I bought the press and extras that cost $500.00 so for $20.84 per year or $1.73 per month I had the use of the press. The cost of feeding the machine will not be figured out for practical reasons and I really do not want to know.