Concerns … This is an overview article which contains background information and cross-game comparisons. For Fallout: New Vegas on the Xbox 360, a GameFAQs message board topic titled 'Chance's Knife Obsolete?' Vendors Pleasant Valley Ski Resort: Sold by the raider vendor bot. Hey everyone, this is the third installment of my Fallout New Vegas commentaries depicting how to get the unique weapons. Chance's knife is a unique weapon in Fallout: New Vegas, and a centerpiece of the graphic novel All Roads.