Well, 60 might be a stretch but I’d pay up for a mint older 7.3. I’ve got a newer 6.7 & it’s got all the power in the world.You would pay $60,000 for a 25 year old truck that has half the power of a new one?
But also had many 7.3’s over the years. The nice part, I can work on them myself. Which only consisted of new belts & glow plugs every few years. My new 6.7? Just opening the hood scares me.