The world's best streaming stock is up 701% in 10 years.Netflix (NFLX 1.49%) deserves credit for spearheading the world's shift away from cable TV and toward streaming. It's the leader in that market, with a global presence, massive user base, pricing power, and sizable profits.Should you invest $100 in this dominant streaming stock, which trades 29% below its peak (as of Dec. 12), right now? Netflix is an expensive stockThis stock has performed exceptionally well in the past, soaring 701% over the trailin ...