Paraphrasing from the recent "Supermarkets: The tricks of the trade"
episode of "Tonight":

A supermarket sells two kinds of wine, one for £ 3.79 (Brand A) and
another for £ 4.49 (Brand B), which differ only in quality. On
average, about two-thirds of customers buy Brand A and one-third buy
Brand B. Problem: Increase total turnover on these items without
cutting or raising prices. Solution: Introduce a third and better kind
of wine (Brand C) selling at £ 9.99. It turns out that even though
very few customers will buy Brand C, about half of those who used to
buy Brand A will shift to Brand B, thereby increasing total turnover.

http://www.itv.com/news/2016-01-21/s...trade-tonight/

--
Bob
The joint that time is out of
www.kanyak.com