If your minimum run is 1000 of a size, and you can only really sell 500 because it's an uncommon size, and you would prefer to sell at full price or not at all, seems like making that size no longer fits your plans.
> prefer to sell at full price or not at all
That really only applies to luxury designer brands where selling at a discount can dilute the brand prestige, is Gucci, Versace, etc. really destroying unsold inventory at large volumes vs. standard retailers?
But clothes aren't perishable, so why would you only be able to sell 500, rather than it just taking twice as long to sell all 1000?
Wouldn't it be cheaper to only produce 500 items, instead of producing 1k, and throwing half of it away?