All RPG player archetypes are valid when they fit with the overall play style of the group.
Whole group is meta gaming together? Positive collective experience. Whole group is hardcore RP? Awesomesauce.
One jackass is meta gaming in an RP group and pissing them off? Trade off that player ASAP.
Honestly, there’s going to be a hard peak to how fast a 3D printer can go, because physics. Unless we start running prints in a vacuum and start tuning local gravity….