You'd be a fool to store value in it long-term regardless of target tx value. I'd argue it's main purpose is as "middle currency". It has the potential of actin

You'd be a fool to store value in it long-term regardless of target tx value. I'd argue it's main purpose is as "middle currency". It has the potential of acting as synchronization mechanism for any two parties arbitrarily across mankind. You buy some with your preferred currency (EUR, LTC whatever) when you need to transact in some context conventional money isn't fit for. The transactor is then in a position where he needs to unload the BTC for his day to day currencies of operation. Do you not see how having major actors in the network is good for liquidity? If you use it as medium of exchange mostly, you're fairly isolated from price tampering from the rich and mighty. We've been functioning like this for quite some time now. Risks from exchange value falling or physical exchange robbing you are close to nil if you manage your inventory and trades appropriately.