I didn't vote because I don't buy based on age. I buy based on condition and how many miles it has on it.
I figure in what the cost of the milage is, based on expected life, compared to if I bought new. In the case of our Honda I bought new because the resale value was so high, new made sense. When we bought a different pickup an 8 year old rust free pickup with 65,000 miles made sense since at the 5-8K miles a year I will put on it, I may never wear it out and I paid less than 25% of new.
We usually driver our cars till they have nearly no value left, so it easy to do the math.