I think this is a given. You can't really say you have a crafting system if you can only craft just a few elements.
The whole economy should be better i think, meaning that you could extract, refine, produce and sell everything in the game. Grow food and animals, make weapons, armors, buildings and whatnot.The only think in the game that you can't make should probably just the landscape and maybe settlements. But a personal hideout like robbers have or how you could build in Viking Conquest should be probably a feature too.