Bingo. Tooling in the US is ridiculously expensive. For other applications (tools for plastics, injection molding, thermoforming) there is often a 3-5x differen

Bingo. Tooling in the US is ridiculously expensive. For other applications (tools for plastics, injection molding, thermoforming) there is often a 3-5x difference in price. Actual processing is much less of a difference, especially at volume. So it makes sense to do tooling in China, production in the US.