Social history, especially of the late 20th century, is one of the main aspects of the great subject of history that fascinates me the most (the other is the Roman republic, so as you can see i have quite a wide area of interest). Adverts are often overlooked as a source material but they can provide an insight into the mundane and the intimate that more "worthy" academic-friendly texts and sources may miss or overlook.
Take this example of an advert for gas fires from the August 22 1977 Evening Mail (scanned from a reproduction). You can get a lot of information on life in ordinary British homes in the late 1970s. The 1970s aesthetic design of course (though there is nothing wrong with these in my opinion, especially as the gas fire in my living room right now is listed in this advert...)
The brand names are different, could you imagine someone trying to sell home items branded Radiation these days post-Chernobyl and Fukushima? The prices also show the effect of inflation. £2.25 might get you a thin magazine these days but back in 1977 it was a monthly payment for one of these fires. The total price of £80 and higher might not seem so much these days but back in the late 1970s it was a large amount of money for an average family.
In fact the Measuring Worth website estimates that £80 in 1977 is the equivalent of over £400 today.