A factory might have a minimum order quantity of 10000 units for a product. The products cost $1 landed.

You know you can sell 4000 of those products for a total of $15k.

This might become a bad deal if dealing with the 6000 extra units costs you money.

maybe this will force factories to change their process. with manufacturing getting cheaper, smaller batches become affordable. at the extreme we can now print books on demand, and improved 3D printing allows one-off items in many more areas. that's the trend we need to push. to get away from wasteful mass production.