«nobody uses it to pay»

Always the same misconception being repeated... Your opinion is not supported by data. Usage is quickly growing:

https://blog.bitpay.com/bitpay-growth-2017/

https://blockchain.info/charts/n-transactions?timespan=all (before someone says "it's speculators": no it's not—buying, holding, and selling BTC on an exchange does not create transactions on the blockchain; the vast majority of speculators leave their BTC in an exchange and never move it)