Help with a strange essay topic?

Think of anything that is rare - but not too rare - today. Usually something old-fashioned is good. I'm thinking of a fountain pen. With time, less and less of these old-fashioned products are made. The price of something increases with rarity. uming that 200 years of development provides a world that is completely digital, no one would gain any profit from making writing utensils. A fountain pen, when first invented, was only for royal or noble cles of society. The feather quill fell into disuse and fountain pens exploded in number. Today, fountain pens have been usurped by the ballpoint and are rather costly. It doesn't have to be a fountain pen; anything that fits this scenario sould work out.