Great point. Once you buy the magazine, the money is spent, whether you like it or not. Although, it should encourage you to not buy anymore. On the flip side,

Great point. Once you buy the magazine, the money is spent, whether you like it or not. Although, it should encourage you to not buy anymore. On the flip side, printed magazines would be so prohibitively expensive without adverts that nobody would buy them, so I guess in print it's a balancing act between alienating users via too many ads or cost of the magazine.