Where can you buy cocktail dresses?

Ebay is a good place to buy cheap stuff. But cheap may mean many things. You can find cocktail dresses priced lower than 50$ in ebay.com. The model looks shiny and the dress is elegant. But you never know whether your dress is as beautiful as in the picture until you see it in person. So just forget about it if you are looking for a well-made, brand-new gown for 50$. A casual dress could worth more than 100$, let alone a well-made one. However, it's possible for a pre-owned or second-hand dress.