Stop in for a cup of coffee

3 different third party appraisers. One of which was John Deere themselves.

but I’m just gonna do what my grandfather would do, say screw it and take that money and buy better and newer. For what we would have had to pay, it was reaching the point a brand new tractor could be purchased.
how 'special' were they in terms of availability. Like are they hard to find models? Like in rare stamps and other collectibles estimated values can be wrong because they don't come to market often and no current sales are there to compare to.