Maybe..there are a lot of variables. Tires are also a big consideration these days. Great tires on a rough tractor will bring more money for the whole. I guess somebody thought it was worth $900 and a second somebody though it was worth almost that much.
I have often thought a new section in the Galleries for Auction Results would be interesting. A person could post a picture of something that was at an auction and the price it went for. Would be an interesting archive.