I see the point. You have to do the walk between being seen and found and getting enough out of your work without giving most of your earnings to the middleman. A strategy could be to have a "normal" online shop on your own and as an addition some Etsy account where you can list a couple of items in order to get new customers. When sending the products nobody can prohibit you from putting the adress of your shop - perhaps with some discount for first time orders - somewhere on the bill included in the package.