Cycle times are going to have to get waaaay shorter, and material costs are going to have to be waaaaay reduced. Other than that, tooling costs are great.
Some of the much bigger 3D printer companies already are nearing the speed of injection molding.
The cost of a spool of filament for my printer costs about $50, granted it doesn’t run much since I only use it for a few parts at a time. I haven’t had to replace a color yet after 3 years.