I didn't mean to say there isn't skills involved.

But you did make my point:
 
*" For one model, there will be 3-4 sets of textures in the store by different vendors, sometimes more"

*My comment was about how prolific, how many products a merchant can post for sale. One character like V4 can generate 1000 texture sets. One dress can generate 25 or 50 texture sets. Yet they are still one model. If I could make 1000 models I'd retire. :)