I am actually going to say, first off I don't have an etsy store yet. But I personally think etsy would be a great starting point. It's a big site and has a lot of clicking traffic. And every week you can read about featured sellers who are showing some success with their page and maybe once every couple weeks they post a quit your day job which features a seller who well quit their day job. They also have been posting awesome sellers handbooks, they basically hand you a guide on how to be successful. Even if this isn't an ending point it gets your name out there without having to worry about building a website. As someone who just watches etsy right now you can look at other sellers who are selling similar things as you, see how much they sell for and see how many people have viewed an item. Some of the people I watch 1 item will have 50 views or more, that's like 50 people walking through your store, they can favorite stuff to buy later and all kinds stuff. If anything it's an easy place to post your stuff, and gives you a lot of encouragements from seeing others succeed. I can see how artfire is slow, it's not as big as etsy but I think it's free but I haven't looked into it much.