3D printing is more a practice than it is a way to quickly create one off objects. I think certainly if your machine is dialed in and not malfunctioning in some way then it will be cheaper and faster to print than to buy this.

I have a Bambu P1S and using it has been some kind of normie-friendly experience. I recall in the long past before I got this machine, my friend's early model Prusa would semi-bootstrap itself by printing some of its parts but the thing I ended up getting was a fully formed unit that just does the whole thing with a minimum of fuss.

We use the 3d printer explicitly for the one-off object scenario.