I guess it depends on how much your shooting. For me casting is much cheaper. Even when I am paying premium to source my lead it never works out more than 5 cents a 45/70 projectile , big difference even over the "cheap" commercial cast options. Nice thing about casting is that you can get into calibers that would be otherwise prohibitively expensive or obscure enough that you could not otherwise load for them. I would not get into casting if I just shot 308 or 223(ok maybe I would), but for example a heeled 44 American, 43 Mauser, 577 snider or 50 bmg I am saving $2-6+ per round even if I could find a commercial alternative.