I’ve only bought 3 commemoratives, so this is more from observing what other shooters do locally and observing commemoratives displayed for sale in LGSs. Generally, NIB unfired commemoratives with all their original paper work and stuff are worth about the same amount as a non-decorated identical model in 95% condition without box. That non-decorated gun NIB unfired is worth quite a bit more than the NIB commemorative. If the commemorative has features like a different shape, length or weight barrel that was never offered on non-decorated versions of the model sometimes shooters will pay a premium to get those features. The extra S&W Bowie knife might fall in that category. As previously posted, this is a tough reality for the “investor” who was sold a mass produced article that was built to be a collectors item.