I like craft fairs but personally I think they have had their day.
I could never, as a ‘punter’ get the idea that I was going to pay an entrance fee to go and look at stuff that other people wanted to sell to me. So I turned away from more than one event on that principle.
Now, as a seller, I think the ones where people do well are the ones where they are free to get in, and themed as shopping events or where they are supported by the local community maybe because they are set up to raise money for a charity or maybe because they genuinely have a good reputation for bringing together lots of artisans.
In my area last weekend, we drove past four signs advertising craft fairs on the same day. It’s just reached saturation point, in my view (and I may be completely wrong of course ) and I think the average shopper is now looking for a ‘new’ or ‘different’ shopping experience.
So to answer your original question, I think Folksy is great as it has potential, but to reach that worldwide audience, you do of course have to be seen. SEO, marketing etc etc. I don’t think either is an easy or quick win, but both have merits.
For me, I want to continue doing both, but have to be very selective about the craft fairs (probably only about three or four that I know of will be suitable).