Maybe you can quote one of the papers on how much Bitcoin is currently in circulation as a medium of exchange and compare that with how much Bitcoin is currently being used for store of value.
If you do, also post it here; I am interested to know.
Well, there is
blockchain.info, currently about 80k transactions per day or close to 1tps. Probably Satoshi-Dice is responsible for a large amount of the transactions. For comparison, according to
bitcoin.it Paypal has 46 tps, Visa about 4000 tps.
So, even including satoshi dice, the bitcoin network doesnt do a lot of transactions compared to PayPal, and even less compared to credit card companies.
Another amusing thing is to look at the amount of "real" money in the exchanges. ~50k BTC (less than 0.5% of current available coins) could crash all exchanges into single digit dollar ranges.