Does 'Because marginal costs are very low, a newspaper price for preprints might be as low as 5 or 6 cents per piece.' exist in a separate context from 'Newspaper preprints may cost as little as a nickel.', without logical interdependence?
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.