I agree. They are built very tough. I to wish they would have used a foot control for ground speed. It can be alot to handle when using a plow, changing the blade angel and height while trying to steer and control ground speed/direction. The tilt wheel option on the newer models doesn't do much for me. But I like the 4x4 option,and foot controls.
I think it will be interesting to see how the newer more technologically advanced x7xx series holds up in comparison to those older 400 series tractors.
I have been a GM technician for the past 15 years, and I can say at least with the pick up trucks the mid to late 90's trucks were a much higher quality build. Heavier materials, and far less problems. The newer trucks had more power,and creature comforts but seemed cheaper built with less quality materials. I guess the old saying still holds true. They don't build things like they used to. Lol.