Since its emergence, the digital photography market has gradually supplanted the traditional one. Digital compact and SLR cameras entered our lives, and some people announced the death of silver-based images. This is not all lie, and yet old-fashioned images have been particularly popular in the past few years. All we do seem to do now is try to recreate the atmosphere of those bygone times anyway. Blurry, distorted and over-saturated images are not just a fad anymore. People have became familiar with the style and even consider it a full-fledged photographic genre.
And this is where toy cameras play a role. These devices, made entirely of plastic, including often the lens itself, are not only toys. Sure, they cost next to nothing and have no controls to speak of, but this is what people like about them: they create unpredictable pictures, with equally unpredictable vintage effects. Once you understand this, the rest is a beautiful game. Take them anywhere, anytime, and photograph whatever you like.
source: http://www.smashingmagazine.com/2010/03/10/uncovering-toy-cameras-and-polaroid-vintage-effects/