According to media, total sales of Concord on PlayStation 5 (PS5) and PC are estimated to be only 25,000 units. In other words, the Concord Disc could be one of the rarest physical first-party games ever released by Sony. Sony officially stopped selling Concord after the 3rd, so the total number of discs will not increase.
Collectors’ enthusiasm for Concord extended to the limited edition themed controller that Sony sold for $85 (about 114,270 won). The price of the controller rose to an average of $252.50 (about 339,440 won) over the past 8 days.
https://www.digitaltoday.co.kr/news/articleView.html?idxno=533323