Replying to my own comments.....For them to be in a separate book than the rest of level up......
There should be a lot more things/ways for artificers to make, and to make them on the fly or at least fast.....for example, if I'm in the desert, I should be able to use the sand around me to cast a spell like firebolt, but that is a blast of sand. Or, lava around that. Or use the snow or sand or dirt or bones to obstruct line of sight.
I'd like there to be rare items needed for some things, so the adventure is to find the rare item.
I think the ideas above about some things being fast, and some taking a long time make sense.
I don't want rules whose only purpose is to consume gold pieces......the rules, imo, should facilitate story telling somehow (where tables want that).