I've had lots of people asking me about the benefits and disadvantages of opening an Etsy shop. I love the whole Etsy concept, and support the many shopkeeps doing their darndest to make some cash off of what they love to do. I'm going to do the hairclub thing and say: I'm not only a seller but a happy buyer.
Having said that, be prepared to pay 9% of your list and postage price in fee's. That's assuming you use paypal, which at this time is the most user friendly option. So before you list and price that item, be sure to take that fee into account. You can also accept money orders and perhaps even set up your own credit card system, but I haven't opted for those yet, as I'm still a "little gal" in the big pond.