
Critics believe bulks artificially inflate newspapers' overall circulation figures and claim the majority remain unread. Newspaper groups, particularly in the quality sector, believe the use of bulks is a valid sampling tool.
Generally speaking, media buyers will discount bulks when buying advertising. A number of groups, such as Express Newspapers and Trinity Mirror, have moved away from using bulks, while others, such as The Sun and sister title the News of the World, have never used bulks.