So been looking for a second car lately and am somewhat lost/confused about the variation in asking prices.

As I am someone who would not typically be keeping a close eye on the market what is the story with car year versus mileage?

For example (just made up): 2005 car with 60k miles for 7k versus same 2008 car with 110k miles for 12k.

I know at the end of the day it is how the car has been cared for, etc... but just curious as to the variation.

Is the year/age more meaningful than the mileage?