This isn't just for medium CUTs but all tractors in general. When I refer to "golden years" I am using it in reference to a time when the manufacturers just seemed to have everything right.
For me it seems like the 90's through the mid to late 00's is when everything on the tractors just all came together. What I mean is the tractors just seemed to be built very well and rugged, none of all this emission garbage, tractors weren't so overloaded with electrical components that you were afraid to let them sit out in the rain and they weren't completely buried with safety switches so you couldn't run a PTO without being in the seat or have the PTO cut out if you decided you needed to back up.
I must admit a lot of innovation has come along in the line of quick attachments like the MMM and the FEL. I was kind of wondering if I am way off base here. A lot of these older tractors built in these years that I see listed for sale are not much lower in price than a brand new one. So are they retaining their value because of the quality and simplicity of the tractors of those years.