I would agree with you when referring to custom and or leather holsters. Some of the plastic holsters (ABS, Kydex, Boltaron, etc.) are injection molded. An entirely new mold has to be made for a left handed version. There is usually one available for the more popular models of firearm, but not so much with the less popular models.Actually I find that not to be the case. Almost every holster maker makes left handed versions of their entire product line. It is not that hard to mirror image a product.