The value of bitcoins is tied to the size of the bitcoin economy. If you believe the size of the bitcoin economy is going to grow over time, then the value of

The value of bitcoins is tied to the size of the bitcoin economy. If you believe the size of the bitcoin economy is going to grow over time, then the value of each coin will also increase (as there will never be more than 20m coins). If bitcoins are to be used as a niche instrument to make financial transactions easier, the total value of all bitcoins should probably be more more than a few billion dollars.