In 2019 RX470 were $70, RX580 $100
I have 6 digits worth of these chips. They've been running fine for years in all sorts of weather conditions. Mining does not destroy cards.The paste goes bad, but is easily replaced (majority of our cards have been running just fine with OEM old paste). We don't have fans on the cards, but if we did those would go bad and easily replaced. But the cards themselves, really don't go bad very often.If you're thinking about picking some up, don't worry about the mining part, but definitely use that to try to get a discount.