It's not a lot when you consider what you get: Globally visible transaction permanence. When you pay the 1.5% visa transaction, you don't get that. And you d

It's not a lot when you consider what you get: Globally visible transaction permanence. When you pay the 1.5% visa transaction, you don't get that. And you don't need that for buying a coffee, or almost anything. Microtransactions are just not a good use-case for the Bitcoin network. The drawback with anything beyond Bitcoin is that in order to buy those currencies, you need Bitcoin. There is an extreme correlation with the price of Bitcoin and every other cryptocurrency. Bitcoin's current hashrate is 95 Petahashes/second, while Litecoin is 2.35 PH/s. I suppose both are big enough that one does not have to worry about the network being easily hijacked. But when you get below a certain point, the price for taking over the head of the chain temporarily is a real amount of money, not an astronomical one.