You are not going to get a Dillon 650 running for under $500 right now. My price before shipping on a 650 is $480ish, I know other dealers get cheaper prices. This stuff lasts a life time, and resale is very good on it. Even old beat up Dillons will bring 80% of a new machine since you can send it back to Dillon and get it rebuilt for next to nothing if not free.
Oh, and you will need lots and lots of these!
Oh, and you will need lots and lots of these!