Ikea is growing its resale business. It's attracting bargain hunters and design nerds.

Next month, Ikea will expand its buyback and resell program to all US stores. Ikea Ikea has bought back about 53,000 items through its secondhand division over the past five years. The Swedish retailer is expanding the buyback program to all US stores in September. The program appeals to price-savvy shoppers as well as design lovers, Ikea told Business Insider. Your old Ikea bookshelf is part of a growing secondhand market. Ikea has spent five years growing its buyback and resell division,…