The document discusses how wine has evolved over time from a necessary part of the human diet to both a food and a collector's item. It notes that wine is now enjoyed for both its health benefits and as a social activity. More recently, wine collecting has grown in popularity as a hobby. The document also examines how changes in incomes and consumer culture have led to people drinking better quality wine less frequently. It explores some challenges for the future wine industry, such as marketing, environmental issues, international trade uncertainties.