Wow, Paul, you really don't understand what it is like to be poor. The poor people don't have a lot of cars in their yard because they can afford lots of cars. They have lots of cars because they never throw them away. Rich people throw lots of fine stuff away, but poor people keep everything forever, because they don't know when they can afford to buy another one.
I've been rich and poor and most of my family is still poor. While they don't have lots of cars in the yard, they are pack rats and worry constantly about a time in the future when they won't have anything anymore.
Poor people keep stuff because there may be a day when they'll need it but won't have the money to buy it. The regret of, "Oh... i had one of those but i got rid of it" is pretty strong when you need something you don't have but once did.