My point only is that the total value is relatively very high and its price would be as difficult for one individual to move around as a large cap stock.
Your hypothetical 1 trade a day isn't reality. Click this link and look at the depth chart. You would need millions of dollars to move the price from 6925 to 6950. https://www.gdax.com/trade/BTC-USD
I don't think its used a lot as a currency now. I think there is a lot of investment in it based on the belief that it will be used as a currency in the future or that it can act as a store of wealth.