Stores like this benefit greatly from the rotating economy. From what you said, it already works this way, but it works better when you have a network of locations in various regions capturing these items. The established clientele already helps and children's clothing never falls into season. I don't know who the target audience is, whether it's cheaper or branded clothing, it could be an important variable.

The rotating economy stores that I know work with credits, thinking about bitcoin this model becomes difficult because the business will not be 100% in bitcoin and you will end up with a bomb credits in hand.