Sure, but they have to think ahead. GPUs make sense for ethereum, but not bitcoin (which moved from GPUs to FPGAs to ASICs). Ethereum is moving from proof of

Sure, but they have to think ahead. GPUs make sense for ethereum, but not bitcoin (which moved from GPUs to FPGAs to ASICs). Ethereum is moving from proof of work to proof of stake. I expect the used market to flood with used mining GPUs once that happens.