Picture worth a thousand words
A common lie told with a straight face, _or_ composed by someone who confuses "value" with "price".
This was brought home to me by an author commenting on the impending release of his latest book. The file containing the image for cover art was _many_ times larger than the (SGML-ized for typesetting) text of the entire book. So I guess the publishing industry does indeed assume that people judge a book by its cover.
(well aware that this will attract down votes, but I suspect I am not the only one who would prefer to skim the text transcription of an hour-long video rather than stare at the screen for an hour with no guarantee of payoff)