YES. before and during my starting Cyclops I was a prototype toolmaker and managed the largest rapid prototyping company in the states.
Mostly we used 3d printers and SLA to make models for silicon or epoxy molds. Or we would use them as test models for engineering or sales reviews.
We serviced the aerospace, medical and tech markets.
back in the day 3d printing was crude and made very weak parts, Sterolithography provided better tolerance parts, but still rather fragile, hence the need to make a mold and then cast Urethane or epoxy parts for short run production.
Today, Both SLA and 3d printing has come a long way, production type parts are possible,and being produced, even metal parts are being made using fused deposition.
IMO it really wont benefit you much, unless your prototyping something that will eventually go into production using another manufacturing technique.