Yes, but...
I have access to a 3D printer, as well as CNC routers, mills, and laser cutters/engravers. The 3DP is a useful tool for prototyping parts, but I can't see to many parts actually being 3DP as a final part. I used it to make a prototype lever for the canopy latch. That worked well, and showed the issues I'd have when it was done in aluminum on the CNC machine.
That said, the shop where I use the 3DP is now applying for an STC for a part that is entirely printed. It is a non-structural part, but is in the airstream at ~200kts.
If I was investing in CNC tools (which, I am), I'd start with the router, then the mill, then the laser cutter/engraver, and the 3DP would be last.