Great question! Per Wikipedia, subscription boxes are a recurring delivery of niche products as part of a marketing strategy and a method of product distribution. They target a wide range of customers and cater to a variety of specific needs and interests. It is estimated that there are 400 to 600 different kinds of subscription boxes in the United States alone and more overseas. Subscriptions vary in both cost and frequency, making them more accessible to a greater range of customers with different socioeconomic backgrounds. Subscription boxes tend to range from $10 to $100.