Be sure you have a solid dealer nearby, regardless if you buy new or used.

They all break and the one who can get parts quickest is the one you need in your corner, even if you use a side mechanic.

I have a mechanic who was John Deere trained, worked for the dealer for years, now has his own shop. Find that guy in your area and go talk to hiim.

Sometimes those guys know of a good tractor someone is wanting to sell, may have kept that tractor serviced for years. Never know until you ask.

DF