The approach I use here is to not see Bitcoin as a currency, but as a money sending service like Visa. The incentive to buy BTC is that one wants to use the sys

The approach I use here is to not see Bitcoin as a currency, but as a money sending service like Visa. The incentive to buy BTC is that one wants to use the system. How much is the usage of the system worth? It is the transaction fees. They reflect what people are willing to pay to use the system.