In my case, the best thing about BTC is that everyone has the chance to earn, to trade, to purchase items that doesn't need any bank partners etc. I'm not earning yet but I know BTC was made for the people who doesn't want to expose identity over internet, portability, accessibility and convenience.
But the main reason why I love BTC is to earn in a simple way other than any Jobs around that requires massive or special skills that only few people can deal with.