If 10,000 x $2.99 = $29,900, and 20,000 x $2.99 = $59,800, then what is the cost of a comic book's (1st) printing? Since I don't know what the creative teams costs are, I am assuming that $59,800 doesn't give MARVEL enough profit to consider most titles viable.

I would think a comic such as CHAOS WAR: ALPHA FLIGHT, which according to a post elsewhere sold 17,276 copies (@ $3.99 = $68,931.24), would be a pretty good benchmark to shoot for.