The number 8 lying down changes into the symbol for infinity. Maybe that's why so many advertisers their stock in the adage: "It takes an average 8 views of something (product, book) before a consumer is motivated to try that book, or product."
Perhaps. Maybe Obie Joe is just lazy, or unimaginative, but he thinks a conversation can happen with just one appearance.
Say a knitter is at a wool and thread store, and she sees a new book about knitting. The presentation for this new book is perfect: the book is positioned near the cash register, with a notecard from the store's owner clipped to the cover. A discount is offered, too.
Does that knitter need 8 times to see that? And then buy the book?