I am getting ready to purchase by first tractor and have some pricing questions. I am looking at a 1533 4x4 Loader for 20,500 and 1540 4x4 Loader for 22,500 at a dealer in Mississippi. 0% for 72 months. However, a guy I know purchased a 1533 last year for 17,500 and another guy bought a 1540 for...