I've made a few deals... I got a 6" Record vice with stand for $40, I missed a nice little forklift that had a bad lift cylinder hose (damaged happened unloading it at the auction) for $600... Got a roll of 3 strand 10Ga copper wire, about 300 feet for $15... Got a 100 gallon tidy tank (for the back of a pickup) for $40 that needed a seam welded.. a barrel lifting grapple for $10, that has all the different bung wrenches with it, a good working pallet jack for $40
Found a 6HP briggs engine with a large dual diaphragm pump (worth lots) at the dump... about 10 1lb cans of propane that were NEW... a *really* good cultivator, 10 ft wide, NEW at an auction for $150.. we were willing to go to $1500 for it