I got my rear blade at a farm auction, and I get lots of equipmet at farm auctions, including one of my tractors. If you look carefully, and know prices and equipment, you can do very well. Almost every area has a weekly agricultural newspaper. They will have local autions listed. Also goggle "farm auctions" or "agricultural auctions" and put in your town and state, and you'll probably find them. On top of that, just goggle farm auctions, there are sites that list them all over the country.
Good luck!!!