I don't know where you are from but they are selling it cheaper for "3rd world countries". It was 1.5 dollars when silksong came out (price is fixed right now, it's 7 dollars now.) in Turkey.
As good as it is, Clair Obscur Expedition 33 was a genuine breat of fresh air and should take the W imo (although same can be said about Silksong but the cultural impact of COE33 has been more impactful)