What about the retro?
What better way to kick off plagiarized marketing then to harken back to the days of advertising glory...where kitch was still funny/campy (on purpose) and truth in advertising was...well, still not truth...but at least there was no real attempt to hide that fact.
To begin to find the truth of good marketing you have to start somewhere more basic...in a world before "Social Media" or psychographics. And, what better time than when television, radio and mainstream broadcast ruled the marketing world.