nobody is willing to put a price on anything.
Just to pick a random tractor for an example.. Sears SS16, all original, needs battery, ran when parked 3 years ago, needs tires, no attachments, no deck.
Buying price for me...$50, selling price in same condition $150 with room for the guys that like to argue about the price.
After you get that one home and get it running good and replace the tires, battery, belts, fuel line, clean and adjust the carb, change all the fluids and any other thing that needs it, you will lose money selling at $400. Paint it all up to show quality and it is still a $400 tractor.
I agree there are is a wide range for used equipment, and nothing can replace a good old tire kicking, but when a guy asks a ball park price for buying or selling a specific GT, it is almost like it gets into the politics and religion territory that nobody can talk about.