Thinking about it more, it gets worse
Running with the hypothetical $200/pr wholesale cost (which means selling for $140 loses a retailer $60), first subtract the cost of shipping to the retailer and packing materials (two decent boxes & foam to survive shipping, and a manual). Let's be optimistic and call that $30. Now lets talk cabinetry. The cabs used for the AA monitors run ~$60 from PE. Again, being optimistic, let's say JBL can build a pair of those tower cabs for about the same. Now you gotta figure in misc crap: internal wiring, binding posts, feet, and 4 ports. Let's call that another $10. Now you've got $100 for 12 drivers and the XOs. That's not a lot of cash divvied up a lot of ways, especially if you figure JBL might like to make a few bucks in producing these things while doing QC, covering warranty claims, etc....