I have a site on Artfire and my items sell sporadically at best as well. They link your product up to all kinds of searches and I do get maybe 50 hits a week. In my case, I believe that I am asking a fair price for my products and folks are looking for bargain basement prices. I've decided not to let that bother me. When I do make a sale, I can be sure that both the buyer - and the seller! - are happy with the transaction. I'm fairly sure this would be the situation on any of the sites available. The plus from Artfire is that you pay a low monthly amount, you can list as many items as you want, and there is no listing cost per item like there is on Etsy. Good luck!