Those 4GB rx580s are still badass, if you have solar power or free electricity you can still mine Ravencoin, Conflux and Ergo, even Alephium, oh Flux is still there, these altcoins can be very big in future, I won't sell this graphic cards if I have them.
They are good cards but not the best. If you want to hold rhe coins for long term and electric bill is high, then we have to pay for it first and sell the coins later on. The problem is if the coin fails, and decided to shut down, those time your are paying the bills will be lost. I guess if you really wanna earn, we just have to buy the best cards available or mining equipment. Because it is better to buy the coins you wanna mine, saves you time and energy, just cleaning rigs is a mess.
