I remember telling people 15 years ago that stereo lithography was a revolutionary technology that would eventually have a huge impact on our lives. We are not there yet but it will probably happen before I die.
Unfortunately, such systems remain rather expensive and additional drawbacks. Most manufacturers still use stereo lithography to make masters for casting, not for finished products, though I've seen some very interesting final products coming out of the automotive and aviation industries.
The final caveat is that using such systems absolutely requires modeling every single piece in drafting software. That requires a great deal of knowledge and skill. I have tried. Oh, how I have tried. I am just not a very smart person and so will probably never get the hang of it.
Anyway, I am a pretty good sculptor and painter, and casting is fairly easy, so I will stick with easy stuff my bubblehead can handle.