why do people help make old cars look bad

I am probably wrong but I thought most of the Joe Dirt type "upgrades" happened in the 80's when these cars were thought be worth next to nothing. I don't see many cars today straying from stock look besides rat rods etc.

Personaly, I think A bodies look much better with a little more wheel in the fenders. I can understand if guys n gals from that era appreciate the stock look though.