Bookstores generally chose to buy old books because the price of old books was relatively low and they could provide readers with more choices. There are a few things to consider before you decide to buy old books: Decide on a budget: Before buying old books, you need to determine a budget and plan the required funds. 2. Search the secondhand book market: You can search for secondhand books online or in the local secondhand book market to find the most suitable purchase channel. 3. Consider the quality of books: When buying old books, you need to consider the quality of the books to ensure that the quality of the books you buy meets the requirements. 4. Know the price of books: Before buying old books, you need to know the price of books and ensure that you can buy the books you need at a reasonable price. 5. Build connections with suppliers: If you search for old books online, you can build connections with suppliers to get better prices and more choices. In short, buying old books was a good choice, but one had to pay attention to factors such as budget, quality, and price.