Is 'Because marginal costs are very low, a newspaper price for preprints might be as low as 5 or 6 cents per piece.' a clear rebuttal of the premise 'Newspaper preprints may cost as little as a nickel.'
Because marginal costs are very low, a newspaper price for preprints might be as low as 5 or 6 cents per piece.###Newspaper preprints may cost as little as a nickel.