For me, bitcoin is much better than the real money at the moment. Because of the volatility, it became an advantage of bitcoin to other real currencies. It also became an opportunity for everyone who wants to earn or to have savings in the future as well. This might be the reason why it became big to them although so far it was a virtual currency.
but there are more people who lose money for bitcoin. Do you think buying low and sell high is easy? never!
There have been a lot of people losing money because of bitcoin and even their entire assets. This is the toughest market I've ever known, whales constantly manipulate prices and make every rule no longer valid. We need to learn more about financial trading if we don't want to lose money when investing in Bitcoin.