The best slam that Cheney got into Edwards was the note that Edwards had established an S corporation, which saved him, personally, $600,000 in taxes.
Edwards rejoined that he had paid all the taxes he owed.
We're pretty well-off people. We don't have $600,000.
UPDATE: My understanding of the corporation is limited and this post is probably wrong.
I still take exception to the notion that Kerry and Edwards have a better understanding of the struggles of the middle class than do Bush and Cheney.