Artist's wouldn't like to do it that way, they would become the flippers and find out that it is harder than you think:
when you consider, keeping it in good condition and the price they would charge, the website, the CGC witness fees, emoloyees and much more...
Probably why Scott Campbell doesn't do it, in fact the only one I know to do it is Stan Lee, and when is the last time they had a book you wanted on the site. Stan's prices are as astounding as Mile High Comics, especially the one's that his wife signs too, were talking $2000.
And can you imagine the volume of books that they'd have to produce to meet current demand or risk losing money on pure volume.
Plus demand would drop considerably, because as much as we complain of the lengths we go to getting SS'd, we enjoy the hunt but new blood would come along presumably.
Sure they could start a mail in service themselves, which actually doesn't sound too bad, but they would not want to go through that hassle either.
As far as calling the artist/creator's greedy, I don't think anyone called them such. I think they're the same as the flippers, and no one said that flippers were greedy either other than maybe Marvel. They're in the same boat. We may get more coin when we eventually sell, but the artist's themselves are creating buzz, a name, interacting with fans, and that goes on and on with benefits. I don't think the artists were agreeing with Marvel. I think the artist's couln't give a flying flip and will remain mostly out of the fight. I basically don't think that even Marvel will go beyond complaining. Sounds like everyone at the con that had window bagged books got their SS. It shouldn't have been directed at the fans in the first place, that sounds like a waisted effort. If Marvel wants action then they need to talk to CGC, which wouldn't fly either. If Marvel continues to make a big stink, then the artist's will speak up in defense, as some have stated valid reasons. All in all I don't see it really going anywhere than Marvel loosing again more clientele and suffering for "their" cause. Feel free to disagree, cause I don't even think anyone know's-----Marvel has just created more speculation