So they're making net-near-shape parts in lieu of castings so they can: 1.) get different part properties (lattice structures), 2.) so they don't waste very exp

So they're making net-near-shape parts in lieu of castings so they can: 1.) get different part properties (lattice structures), 2.) so they don't waste very expensive materials that are often blocks of unobtainium with 95% machined away... You're right - it's going to be very difficult to get high tolerance parts using any method of 3D Printing. Don't say never - but isn't not as close of the koolaid machine would have you believe.