nostalgia

As we age our nostalgic yearnings grow, making us more receptive to advertisers and marketers use of what researchers call “a longing for positive memories from the past - The Power of Nostalgia - Duncan, 27th January 2010

Marketers and Advertisers play on history land marks of a certain era to gain a positive image or trigger to the consumer. For example, the Hovis link above travels through the years of the United Kingdom reaches out to different generations and triggering happy and positive memories that trigger stories from the past. 

This form of marketing/advertising is a clever way of gaining awareness for the organisation and perceiving a positive personality for the product as well as the brand itself.  furthermore, it could be suggested that nostalgia is a form of advertising that has less chance of failing to gain or keep customers from purchasing the product/brand than a new,modern or futuristic advertising as the its most likely to gain publicity and public conversation in a positive way.