It's less a factor of price for most things than just the material properties of the finished product and the fact that most things aren't a blob of material, but have circuit board, etc. that requires assembly.
That said - cups, jewelry, etc. that can be made at once don't have these material/assembly issues. Jewelry only costs $20 more to do using 3D printed patterned (as opposed to molded patterns), but with ceramic cups you're right: price is the biggest hang up currently.
That said - cups, jewelry, etc. that can be made at once don't have these material/assembly issues. Jewelry only costs $20 more to do using 3D printed patterned (as opposed to molded patterns), but with ceramic cups you're right: price is the biggest hang up currently.