I personally feel that mining, using proof of work is really out dated. Yes it was great 10 years ago but technology evolves and better ways of achieving things get invented. When mining your are investing and risking your money on electricity, hoping that the value of what you are mining pumps. It’s way more risky than proof of stake. Imagine spending all that money for electricity mining and the value of what you are mining keeps dropping. How do you keep up?