Ducati Multistrada 1200S Topcase and Rack

Top case, mounting rack and white cover for 2016 Ducati Multistrada 1200S I purchased in 2019. This will fit at least 2016 - 2018 Multistradas but I just don't know on other years. This unit is in "as new" condition. New, these bits go for $668.00 for the case and $139.20 for the white cover. Selling for half of that at $454.00 you pay shipping. Why selling? Thanks for looking.