>>2931502>usually there's a better way to manufacture something than to 3D print it.Counterpoint: Literally anything with thin walls or features that aren't at easy angles. Pic related. Good fucking luck making this any other way without a shitload of material waste, time-consuming setups, horrendous initial tooling investments, or a bunch of manual labor building it up piece by piece.
You might want to take a look at some of those "thousands" of parts you've engineered that were made to be injection molded, O Mighty Career Designer. Odds are very good that those are the exact sorts of parts (possibly with slight modification) that are prime material for 3D printing when being made in low quantity.
I _do_ have a well-equipped home shop, but the 3D printer is the default for small-ish parts that don't have specific physical requirements (strength, heat tolerance, high precision, etc.). Which tends to be quite a few things, as it turns out.