Not trying to be contrary, but I'm pretty sure "market value" is what people pay not what you think it should be worth.
Well that is true, but market value is not as simple as just what someone pays you in my experience. I can sell a tractor tomorrow for a low price, or I can list it even with local dealer inventory and have to sit on it awhile or I can be in the middle and sell it in a reasonable timeframe. All will net different values.
True market value is a very complex ever changing number based on supply, demand, comps, and local high and low values. It isnt as simple as what a machine sells for.
Anyway if people don't see it that way that's fine, that's how I look at it and I'm not saying I'm right.
What I will say is how I have been pretty successful pricing used equipment.
1- find local dealers (within a couple hundred miles) numbers on comparable machines.
Remember most people will pay a dealer more (for whatever reason) than they will private party sale.
2- use tractor sales search engines and check your model to others
3- check Craigslist for local comps and within a couple hundred miles
4- Lastly based on the supply and pricing decide if it's a good time to sell your machine and if so what the number is going to be to get it done.
Anyway not trying to get into semantics or disagree with anyone, everyone views and terms things a little different.
Anyhow I've been fortunate using CL to move a few machines and put a little food on the table for my family. Best of luck to you all, Rye.