After reading the replies here are few ideas i have put out,
lets say bitcoins become the primary means of transactions, would that then be a feasible axiom, people could keep other currencies for storage (metals) but transactions occur in bitcoins
Also, im going to ignore lost wallets because that will only drive the value higher and no one will complain about their bitcoins being worth more than expected.
Im going to look into this more tomorrow, so feel free to add anything i should look into