Well I do not think there are many tractors out there in that range of years that are bad.
You need to find what is available that you can find parts for in your area.
I am partial to the Olivers and Case tractors, though in my County Most are either Farmall or John Deere.
A county north you will find a lot more Case and a County South is Oliver and Massey Ferguson.
In a used machine you are buying what is left. So look them over good unless your willing to do a bunch of work on them. Though much smaller I bought a nice low hour machine because I needed it to do the work, not a rebuild project. If I ever sow my 7 acres beyond the garden and orchard to Alfalfa I am going to need a 50 hp or better machine myself.
I really wanted a 550 Oliver but never found one that suited me without needing some more work work than I had time for.
Edited by JD DANNELS, December 31, 2013 - 07:47 PM.