Most newspapers make nearly all their money from avertising. The income from the customer's payment at the news-stand is small in comparison. For that reason newspapers are not expensive to buy, and some (such as AM New York in New York City and Metro in the UK) are free. The portion of the newspaper that is not advertising is called editorial content, or simply editorial, although the last term is also used to refer specifically to those articles in which the newspaper expresses its opinions. Publishers of commercial newspapers strive for higher circulation so that advertising in their newspaper becomes more effective, allowing the newspaper to attract more advertisers and charge more for the service. But some advertising sales also market demographics: some newspapers might sacrifice higher circulation numbers in favor of an audience with a higher income. Many paid-for newspapers offer a variety of subscription plans. For example, someone might only want a Sunday paper, or perhaps only Sunday and Saturday, or maybe only a workweek subscription, or perhaps a daily subscription.