American magazines typically have a much higher proportion of advertising to editorial, with a lower cover price. Linux Voice will have more editorial copy, paid for by the purchase price, not advertising. Ethically, I don't think you can justify charging good money, then loading the thing with ads; that's just taking the piss out of your readers. Of course, if Red Hat or someone wants to buy 16 pages of advertising, we'll take their money, but we'll print extra pages so that the number of editorial pages doesn't fall.