I gave up on Bitcoin a while ago already and I reoriented to more volatile coins like Steem as you just mentioned. The main reason behind this it is the reduced ability to scale of Bitcoin over the PoS based blockchains. I believe there will be no PoW in the future so unless any major hard fork changes Bitcoin, it will become just cryptogold at most...
Yeah. POW has some serious unsutainability issues.
I know, and I hope it won't be here for long (it can just be forked and replaced with PoS) so the entire earth benefits from less energy consumption.