Even more if in your childhood memory it is engraved as something fun. As a child, and I believe others too, getting and returning the cart with the little coin your parent gives to you was cool.
My parents and me were living near a large supermarket in the very early 90s when coin carts were introduced. I spent the first afternoons with my little BMX bike at the parking lot, looking for carts where people, unused to the new system, forgot their coins. Or I simply offered to return the cart. If I remember correctly, in one afternoon I made somewhere around 25 DM. I invested the proceeds into LEGO pirate sets, of course.
