Hi Sincere, we have a separate AI Rule for used products including used books. As long as your min price is within the top 20 it will attempt to reprice you into the top 20, this is especially useful for extremely competitive used books that usually have more than 20 offers. Many of our larger used booksellers use AI Equalizer. You can also watch this video for repricing strategies for used books ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-e45oH0U9d1g.html.
Hi Dexter, the AI is available starting from the US$50 plan. For the basic plan, you can use our algorithmic rules. As you know it's very expensive for us to run large amounts of data to analyze the billions of data points. This is the most affordable AI repricer with True AI, with machine learning technology on the market. For the free 14-day free trial, you have 10 free AI listings to test out and only pay if you get better results. Usually, the investment pays back very quickly. Wish you the best!