Well, I think they are. But that's not due to the quality of outside material, but the degradation of our material.
I quickly glanced over the sunday comics when I was home this past week. The two biggest comic strips were a strip about a menopausal woman's problems, and a strip about a couple of black children commenting on racial problems.
I've read MAD comics for a while, but it just never seemed funny. I've heard it was funny before a head writer left in 1992.
But I'm going to have to pin the death of American Comics to January 1st, 1995. When the last Far Side comic by Gary Larson was printed.
Freelance comics are trying really hard though.
http://www.pbfcomics.com is a great place, but isn't printed anywhere.