A store of value currency, that's value is based on artificial scarcity is a foolish concept. Best store of value is in goods, that actually are scarce, and therefor hold solid value. If store of value is mostly based on speculation and faith, then it's too fragile to be a proper place to store value, because those 2 things are anything but predictable and static.
Currency itself hasn't been created for storing value, but to transact value and by that help the dynamics of economy. It's the dream of fat lards, that currency would hold or even enlarge their wealth, while they sit on their ass. Economy, nor even evolution doesn't work like that. Fat lards won't get rewarded for their laziness and the basic principle of currency will remain - your wealth will shrink if you won't keep it moving and your wealth will only enlarge if you work with it by developing new economic paths.