I guess it is becoming more competitive for NVIDIA, with ASUS and MSI coming up with decent and cheaper alternatives. Would leave it to an expert miner to tell how they compare.

Besides, I think the current price of NVIDIA already reflects the expected growth till 2020 and beyond. Unless there is some major tech breakthrough that NVIDIA has up their sleeve, I don't see any more upside. After all stocks are more fact based and less speculative than cryptocurrencies