There are those on the Internet who, despite never having worked in a direct market shop and quite possibly having dropped off even shopping in them for quite some time, feel qualified to make assessments about the health of the direct market, how much better the bookstore and Internet bookseller market is and how the direct market is a dinosaur on its way out.
Brian Hibbs, a longtime retailer in San Francisco, brings out the Bookscan charts to put the lie to this particular fallacy. This is pretty intense number-crunching reading, but if you want to see just how well graphic novels do in bookstores versus the direct market, check out this article.
Here's a hint: The Direct Market sells more than the bookstores in just about every category. And the art comics that some like to claim are what more folks want to read don't sell any better in bookstores than they do in the Direct Market. And superhero continuity books seem to do pretty damn well in the bookstore market and the direct market.
And... well, just read the article. Suffice to say, some Internet pundits (I won't name any names or drop any initials) don't really know what the hell they're talking about.