Etc isn't going to be your savior lol, its a shitcoin and always will be a shitcoin. I say this as someone who mines it with some old gpu's but the chain has virtually no purpose or prospects for doing anything meaningful.
Eth flipping the pow switch to "off" will be amazing for the gpu market, me thinks it will be crazier than any gpu crash of the past. I really really hope rtx 3080s get super cheap as millions of them are sold off to the resale market. How wonderful would it be in the chaos to grab a few of these high end gpus on the cheap and start prepping for the next bullrun and rise of a high tps pow blockchain. Mining profits will be crap for a good while but the market will balance out after awhile
Exactly my sentiment, except for the ETC part. #33 in market cap isn't exactly a 'shitcoin'. For a coin to be considered a shitcoin, the market cap ranking must be > 100.
I'm so excited for the big ETH GPU crash. Like you, I'm going to buy up as many used video cards as I can. Probably the RTX 3080 LHR or RTX 3060 LHR ones and a few RX 6800's.
In general, I think the RTX 3000 series will be the best choice, and it won't matter if a card is LHR or FHR (except on ETC; even then, you can do dual mining). Next-gen cards = way too expensive & bad VRAM bandwidth (unless you'll mine RVN/FIRO/core-heavy algos). Older-gen cards = poor power efficiency.
Who knows, somebody could figure out how to 'triple mine' on the 12GB/16GB cards with strong enough core performance. Imagine mining ETC+ERG+FIRO or ETC+CFX+FLUX. Whichever developer figures out how to engineer a reliable, efficient triple miner for these hard times will make millions.