I just did the math on my 9 mm loads and it comes to $7.3 a box of 50 but I am loading JHP's. You can't buy JHP's at any store for anywhere near that price!
Most of the powders I use like Power Pistol and Bullseye are currently costing around $13.50 per pound when I buy 4 or more pounds. The place I buy from has a discounted HAZMAT shipping to IL so it's only $12.50 for HAZMAT charges!

Primers cost about $28 per thousand and brass is either super cheap or free from friends that don't reload! I have been buying my bullets from Rocky Mountain Reloading and the prices are great for quality jacketed bullets at around $100 per thousand shipped.