There is a similar concept in video game design called 'game feel': http://www.gamasutra.com/view/feature/130734/game_feel_the_secret_ingredient.php?print=1 htt

There is a similar concept in video game design called 'game feel': http://www.gamasutra.com/view/feature/130734/game_feel_the_secret_ingredient.php?print=1 http://www.gamasutra.com/view/feature/130734/game_feel_the_s... It's a very subconscious thing, how we appreciate two similar things with slight changes, and often we would struggle to explain why we feel that way. It just 'feels' better.