After reading this whole thread...I just had to comment, but I will only comment on facts. You can all continue the debate as you please...
Wrench manufacturing is actually quite labor intensive, expecially for larger sizes and lower-volume parts. Forging is done by hand, by higly-skilled workers who take 6 months of producing scrap before they make their first good wrench froging. Broaching the open- and box-ends requires handling to load each wrench in the fixtures (handling generally takes much longer than the actual machining operation), the same holds for surfacing the open end (2 sides) and stamping the size(s) and brand / part number. The wrench then has to be hand-loaded on a rack for plating, hand-unloaded from the rack, and hand-placed into packaging. In addition to all these per-piece handling operations, the wrenches are loaded into heat-treatment and vibratory polishing equipment in batches by material handlers. All in all, the machine time for a wrench is actually a very small percentage of the overall time invested in its manufacture...just thought I would clear up that little bit of confusion...proceed with the debate...