This stock has been a 20-bagger over the last 10 years and still has plenty of room to run.Amazon is so big you might think it dominates everywhere. That's not the case, though. In Latin America, there's another 800-pound gorilla: MercadoLibre (MELI 0.85%).Over the last 10 years, MercadoLibre stock has been a 20-bagger, nearly doubling Amazon's return. Is it too late to jump aboard this Latin American leader's bandwagon? Not at all. Here are three reasons to buy MercadoLibre stock like there's no tomorrow.1 ...