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by amelius 917 days ago
3D printing is much more versatile than LEGO. Take just a random example: a cup holder for in the car. Using 3D printing, it would look and work similar to the ones you can buy in a store. Using LEGO would make it very bulky, aesthetically not so great, and also it would fall apart easily.

I think the original commenter above has simply never used a 3D printer for anything practical.