B A R R Y writes:

[...] Go find a '75 Cherokee with the original equipment, now find
a similar plane with "ridiculously expensive add-ons", like a glass
cockpit. The market values will differ, possibly
exponentially. [...]

I wonder - when you say "exponentially", do you mean "mathematically
related to the function e**x"? Or do you mean simply "a lot"?

- FChE