The series also ranks high on the collector's market, with original editions ranking among the most valuable. Graton's original art pages have fetched high prices at auctions. In January 2006, a page from "Le 13 est au départ" was sold for 4,800 euros at an auction in Paris. In April 2006, in Paris again, an original page from "L'Honneur du Samourai" was auctionned for 12,384 euros (whereas its original value was 3,500 euros), breaking the record of the time. In 2008, an original page from "De l'huile sur la piste" was sold for 11,520 euros at auction in 2008 at Brussels among other works previously published by "Tintin" magazine, establishing the record sale of that day.