I went to a local auction about 5 years ago where a steel fabricator had gone bankrupt. He had a big factory unit with an open yard area out the back, probably about 100 sq metres.
The back yard was where they threw everything that wasn't being used - scrap steel sections, all types of equipment. The auction house declined to even sort it or catalogue it, it was just a jungle!
The auctioneer stood at the back door of the factory unit and pointed to the yard area and said, "We're auctioning everything in this yard area, as one lot! You have to clean it all up, and take it all away!
Every other bidder was leery of bidding, and the cleanup work involved, you couldn't even see what was there properly, stuff piled on top of heaps of other stuff. I was the winning bidder at $90.
I got in there and found a shipping container ramp ($1000), a set of forklift slippers ($300), a big old John Heine punch and shear machine ($500), close on 5 tonnes of very useful steel offcuts - angle iron, pipe, RHS, channel steel, workshop tables, pressed channel chassis extensions - several steel racks - a metre diameter 3 phase exhaust fan, and a host of other useful items that I can't even recall in total.
I reckon I got at least $5000 worth of equipment, machines, and steel - and I had it all cleaned up and loaded on my truck, in one afternoon! They had a forklift there that got worked hard, loading everything on!