What is significance of storj coin

You will get paid in storj coin when you run your own storj node.
However why storj coin? I am wondering what is advantage of being paid in storj coin compared to real money like USD.
Apparently, it is able to pay with a credit card for using storj network.
Having real money payment for network usage charge but why not payout with real money for operating storj node instead of storj coin?

2 posts were merged into an existing topic: Why does Storj use the STORJ token?