The streaming video giant hasn't stopped growing yet.Netflix (NFLX -9.09%) has minted a lot of millionaires since its public debut in 2002. A $10,000 investment in its initial public offering (IPO) would be worth a whopping$5.4 million today. But it wasn't a smooth ride. Netflix's stock endured some steep declines over the past two decades as it repeatedly transformed its business model, yet it has consistently proved the bears wrong.Some investors might argue that Netflix is running of room to grow. After ...