The farmer that rents my land had a 1997 john deere combine up to last year. That thing rarely gave him trouble. Now with the autosteer technology built in, its not for old farmers. The wiring in those machines is something short of the wiring in the space shuttle.
Combines gotta go fast, empty fast and never get stuck.
Think his last good used one he got a couple years ago was $480,000.
Yeah, the old Titan IIs of the late 90s were really the last of the old, fully driver input controlled machines. Now most are GPS tracked and driven with little input from the driver once the GPS system is engaged