I'm hedging my bets on FPGAs for the long term. They can run at a fraction of the power demands of typical GPUs, and has as fast as ASICs with the proper algorithm.
Yes ETH going PoS is greater danger then any ASIC of FPGA simply because of the number of GPUs on it. Unless half of those then simply sell their rigs. In that case its not so bad at all.
I also see FPGA as the future, but until they are mass produced affordable and can be operated by the average Joe, not so much.
By the time ETH goes POS, all of those GPUs mining it will be obsolete anyway. If ETH disappeared tomorrow, the 570s, 580s, 470s, 480s would have nowhere to go. Maybe cryptonight algos.
Really, then why I am making better profit on Lyra2z coins then on ETH? Also the new miner for Lyra2rev2 is great for AMD.
Maybe for now, most lyra2z coins are essentially masternode shitcoins though and fpgas are coming for lyra2z , and zcoin will be forking to a new algo soon. My point wasn't that ethash wasn't the only thing the old amd cards can mine, its that they aren't very versatile compared to nvidia cards.