I'm pretty sure the DesktopMetal Studio is USD120K+. It uses rods as filament, maybe 300-400mm long (don't recall the diameter, but maybe 5mm?). The rods are factory-packaged in a dispenser, and the head periodically stops extruding, goes over the the dispensing box of rods and grabs another one, then resumes the job. It's exactly like a hot glue gun, but these rods are a blend of polymer binder mixed with metal powder. The part is then placed in the microwave furnace (which is why it can be used in an office) to drive the binder out. There has to be waste, but I don't know what forms it's all in.
They also have a larger system, and from what I recall, it's broadly similar to ExOne, HP and others that use a spray binder onto a bed of metal powder, producing a green part. You then bake it, driving the binder out, and shrinking the green part by 15-20% to get a pretty dense "solid" metal part.
GE is also coming out with a similar binder jet system. They made some news last year by producing their own system in-house, from concept to working prototype, in like 90 days. Impressive, but not quite so much when it was realized they had extensive experience with multiple other companies' systems, and had already done a lot of "mental homework" of picking & choosing the best features, learning from other's mistakes, and treading a path between patents.
The lowest cost laser powder-bed fusion machine I'm familiar with is from Xact Metal. A couple years ago their small unit was about USD80K.
@DocTrucker - speaking of EOS, I'm traveling next week to their Texas office to evaluate an M400-4 (4x400W lasers) machine for our needs.