There are plenty out there that trade between BTC/ETH and other coins, in the hope to increase their BTC/ETH holdings. There are atomic trades happening on DeF

There are plenty out there that trade between BTC/ETH and other coins, in the hope to increase their BTC/ETH holdings. There are atomic trades happening on DeFi that have to be denominated by ETH, because of gas costs. Looking at the fiat price doesn't mean you don't care about crypto. Not looking at the fiat price doesn't mean you care about crypto. Personally, I don't look at the price until end of the month when I need to pay the bills.