Low upfront costs
Designed from the ground up to be scalable in a sub-industrial manufacturing environment. It has to deliver at the reasonably lowest price point.
Low cost per part
Polymers in pelletized form cut down cost per part considerably compared to 3D printing with filaments, saving money every time you print.
Low running costs
Cut your own print beds from plywood. Source most parts in any robotics shop. Everything is bolt-on. Of course there are corners cut, but not where it matters.