Well, I don’t know. I think a large part of being successful when running a business as such, is to have a large network. If you don’t have connections, if you don’t have a lot of people following you like I do, you might not make a lot of sales. Which is why a lot of people opt for using etsy bc they have a large traffic. I however use storenvy bc I don’t want etsy getting any of my hard earned money, but with my “name” I make about the same amount of sales as someone from etsy would. But that’s bc I work hard and advertise for myself instead of having some brand like etsy do it for me.
I myself make a good amount of sales, but it really depends on the individual and the products you offer. If you offer a bunch of stuff that looks exactly like a bunch of your competitors stuff, you won’t make sales. So stand out, establish a name for yourself and then make a couple things to test the waters. That’s the best advice I can give you!