You left out a plausible (and common) option: a more expensive pastry chef can make pastries that sell better.
This is what's in play when you see a line out the door at some shop. The prices may not be that much more expensive, but the quality is that much better.
This is what's in play when you see a line out the door at some shop. The prices may not be that much more expensive, but the quality is that much better.