>>Bitcoins could replace gold.

umm. no. central banks hold gold as a reserve asset. all other reserve assets are liabilities of foreign govt's. eg: USG. Central banks aren't about to replace the only unencumbered physical asset they have with a digital algorithm.

>> I see bitcoins as the storage of value, but not method of payment

I think you have it the wrong way around. Bitcoin could be a medium of exchange but not a store of value. It's too small isn't liquid enough to be credible as a SOV. If it got big enough to do so then govt would crush it.