This e-commerce niche provider sells differentiated goods on its marketplace.When it comes to online shopping, Amazon is without question the dominant force, with its massive selection and sprawling logistics footprint. However, Etsy (ETSY 2.27%) has found its place in the industry. It's a top choice for those consumers searching for unique, vintage, and handcrafted items.Before investors consider buying this e-commerce stock, though, it's a smart move to take a closer look at Etsy's performance. Etsy share ...