Is 32 40 the rarest caliber in Winchester Model 94 saddle ring carbines?

Actually any caliber other than 30-30,or 32win special,will bring a 40% premium to the value of any saddle ring carbine model 1894 Winchester.I can only assume that the 32-40(32WCF) and 25-35Win.would be the 2 most rare calibers in the saddle ring carbine version of the model 1894.