[angus77]

There's a lot of diversity in North American comics, just not in their sales. All the diversity gets shoved into the back corner of the store, where only those already "in the know" would dare venture. Check out Fantagraphics and Drawn & Quarterly and their decades-long output of original, reprint and translated material, on about as many different subjects as you can name.

[commieneko]

I'm well familiar with the non-mainstream American comic market and literary scene; said as much in the post. But as you said, demographically it is very small, though it does poke through here and there in the mainstream awareness.

Frankly, I find more diversity in the comics/graphic novel section at Barnes and Noble than I do at the local comic book shops. And I'd say about half of that was manga and manga oriented material.

Something I didn't touch on in my previous post, which is kind of ironic considering our current venue, is the diversity found in U.S. web based comics. (The 800 pound gorilla there is Penny Arcade, which is a sort of sympathetic deconstruction of gaming culture.) But since the barrier to entry is essentially zero, there's a lot of diversity in web comics; diversity in style, themes, maturity, ... and quality.

Without really trying I've had the opportunity to meet dozens of web comic creators. Their fan bases range from dozens to thousands; with the largest rivaling mass media audiences. There is certainly much more exploration of specialized interests in this arena than in any other western, English language comics.

There doesn't seem to be a lot of commerce involved. Only a few are able to make a full time living at it. In some ways that's healthy for an art form. In others it can be very limiting. We can hope this aspect will change over time.