25-35 was so expensive because no firearm had been made for it in 50 years. My dad has been reloading the same box of brass since the mid 70's, although he doesn't use the gun any more. He probably loaded about two boxes per year. As far as I know, Winchester is the only company still loading 25-35, although now that rifles are being made again it wouldn't surprise me if ammo costs go down and other people get into the market.