A quick Google suggests an entry cost of about 100k for a true metal printer.
Printers such as the MKS3+ are going to print filament embedded with metallic particles. This does not create a true metallurgical bond.
The parts need to be subsequently sintered to create the metallurgical bond. This will burn off the filament or binder and create a large volumetric contraction.
The printers that use LPBF/SLM create true metallurgical bonds. They start at 90kish.
Understand the spectrum of metal 3D printer prices, from entry-level technology to hidden expenses and on-demand service options.
all3dp.com
As I mentioned in your previous thread, a printer that uses FDM technology is limited to temperatures of about 300C, which cannot directly bond metallic materials (well, the ones of engineering interest, generally). Secondary processing is required.