Since paper money was no longer backed by gold it has only made governments and print presses "richer", it is worthless paper with fancy trimmings.
Store of value is in technology behind digital which will come into fruition depending on use.
Gold became valuable due to social construction with man enjoying the shiny metal historically.
Buyer/Seller is where value is held, people will decide, a bit of both makes a better package if one is able today.
Moving forward into future is going to be interesting how we trade.