We also need to consider what's called "showrooming" [do a google for more] and what it's done to retail. Basically the people who are paying for retail space, employees, etc. are taking the brunt of customers checking out merchandise in their stores, then purchasing them from online retailers who don't provide the added value such as doing a proper setup. It's a big problem these days and this thread is one of the side-effects of it.

http://en.wikipedia.org/wiki/Showrooming
http://www2.macleans.ca/2014/02/03/r...t-showrooming/