As a Chinese practitioner who mines both GPU and ASIC, I now have about 1,000 pieces 3060TI and 3070, 400 units S19 series. My idea is that I will keep digging with GPU. If ETH turns to POS, then I will dig ETC. There will always be a way. Of course, ASIC mining is my main business. Many Chinese investors are now working in Texas for the chinese  policy reasons, and the electricity price in Texas is completely acceptable for mining. As for the S9 is a very stable machine, the failure rate is not high, but $380 is definitely second-hand,The failure rate will be much higher. So I suggest you buy a refurbished S9j 14.5t, it will be much more stable, about $500 a piece.If you are worried about the price of BTC falling, then I suggest you to buy the Ant S19 series. With Texas electricity costs, you'll always be profitable.