Back when dinosaurs roamed the earth, people took pictures of the Tyrannosaurus Rex with film-based cameras that required them to drop their pics off at a Fotomat for processing. Then, instant pics in the form of Polaroid cameras came along and the term “instant gratification” was born. Today, most of us snap pics on phones because cameras are just another device that we don’t want to carry.
http://robertsiciliano.com/blog/2013/05/12/4-completely-different-ways-to-share-photos/