Because it’s still the best option. I know my USD tomorrow is going to be worth less than USD today. But I don’t think there is a better option for some portion of my assets, and I still trust that it will be useful to me in the future.

But I also don’t keep more than a few years worth of USD, instead I hold other equities that I believe will increase in value relative to USD. USD gives me liquidity, but not necessarily a good store of value. Other assets give me store of value, but not liquidity.