 What is the writer's opinion of the instructional videos advertised in the New York Times Book Review?
A woman I know says women's magazines are the best places in America to find sex tips. You're much more likely to land on "Try phone sex, dirty notes, porn videos, fantasy games and sex in new places. ... An article in the April Cosmopolitan , "The Six Best Sex Positions," seemed more promising than the Redbook playbook. And in general, Cosmopolitan 's exotic sex positions require the sort of body placement you can't remember in the moment of passion and even if you could, for proper alignment, you still might need mood-killing accessories such as a plumb line and a laser pen. Next we tried those "Better Sex" instructional videos advertised in the New York Times Book Review.
 Porn is more instructional.
 They are unrealistic.  The only function of listing these videos was to increase the newspaper's third-quarter sales productivity.  They are overpriced.  Porn is more instructional.