While the overall results may end up the same, it turns out there is an element of psychology as well:
http://www.npr.org/blogs/thetwo-way/2014/05/02/308953770/rock-scissors-paper-strategy-could-be-more-than-mere-childs-play?ft=1&f=1007 (http://www.npr.org/blogs/thetwo-way/2014/05/02/308953770/rock-scissors-paper-strategy-could-be-more-than-mere-childs-play?ft=1&f=1007)