Have a 96 2188 with 6100/4300 hrs on it, I'm the 3rd harvester to own it. Yes lots of parts replaced, some for the third time. But on the other hand it would surprise you at what is still original. Its been a very good machine. I plan on running it hard for at least another year. The only thing that scares me is the electrical, but so far it has proved to be reliable in that department. Keeping them super-clean and blowed off every day I think helps the life of a machine more than you might realize.
Just for fun, do the math, at 4300 rotor hours, say avg. of 8 acres/hr (low end) and say avg. yield of 40 bpa (low end too, this machine has done lots of corn) that's 1.37 million bushels. Double that number if you wanna get closer to the real number for the corn its done, that's like 2.7 million bushels! Now that's alot of grain through one machine, I don't care who you are.